MERSIN, TURKIYE - SEPTEMBER 11: Rescue teams conduct an operation to rescue the American scientist Mark Dickey, trapped in the Morca Cave after suffering from gastrointestinal bleeding in Mersin, Turkiye on September 11, 2023. 196 personnel from 8 countries participate in the rescue operation led by Disaster and Emergency Management Presidency (AFAD). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

MERSIN, TURKIYE - SEPTEMBER 11: Rescue teams conduct an operation to rescue the American scientist Mark Dickey, trapped in the Morca Cave after suffering from gastrointestinal bleeding in Mersin, Turkiye on September 11, 2023. 196 personnel from 8 countries participate in the rescue operation led by Disaster and Emergency Management Presidency (AFAD). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

MERSIN, TURKIYE - SEPTEMBER 11: A member of rescue team walks during an operation to rescue the American scientist Mark Dickey, trapped in the Morca Cave after suffering from gastrointestinal bleeding in Mersin, Turkiye on September 11, 2023. 196 personnel from 8 countries participate in the rescue operation led by Disaster and Emergency Management Presidency (AFAD). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

MERSIN, TURKIYE - SEPTEMBER 11: Rescue teams conduct an operation to rescue the American scientist Mark Dickey, trapped in the Morca Cave after suffering from gastrointestinal bleeding in Mersin, Turkiye on September 11, 2023. 196 personnel from 8 countries participate in the rescue operation led by Disaster and Emergency Management Presidency (AFAD). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

MERSIN, TURKIYE - SEPTEMBER 11: Rescue teams conduct an operation to rescue the American scientist Mark Dickey, trapped in the Morca Cave after suffering from gastrointestinal bleeding in Mersin, Turkiye on September 11, 2023. 196 personnel from 8 countries participate in the rescue operation led by Disaster and Emergency Management Presidency (AFAD). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

MERSIN, TURKIYE - SEPTEMBER 11: Rescue teams conduct an operation to rescue the American scientist Mark Dickey, trapped in the Morca Cave after suffering from gastrointestinal bleeding in Mersin, Turkiye on September 11, 2023. 196 personnel from 8 countries participate in the rescue operation led by Disaster and Emergency Management Presidency (AFAD). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

MERSIN, TURKIYE - SEPTEMBER 11: Rescue teams conduct an operation to rescue the American scientist Mark Dickey, trapped in the Morca Cave after suffering from gastrointestinal bleeding in Mersin, Turkiye on September 11, 2023. 196 personnel from 8 countries participate in the rescue operation led by Disaster and Emergency Management Presidency (AFAD). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

MERSIN, TURKIYE - SEPTEMBER 11: A member of rescue team walks during an operation to rescue the American scientist Mark Dickey, trapped in the Morca Cave after suffering from gastrointestinal bleeding in Mersin, Turkiye on September 11, 2023. 196 personnel from 8 countries participate in the rescue operation led by Disaster and Emergency Management Presidency (AFAD). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

MERSIN, TURKIYE - SEPTEMBER 11: A general view of Morca Cave where rescue teams conduct an operation to rescue the American scientist Mark Dickey, trapped in after suffering from gastrointestinal bleeding in Mersin, Turkiye on September 11, 2023. 196 personnel from 8 countries participate in the rescue operation led by Disaster and Emergency Management Presidency (AFAD). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

MERSIN, TURKIYE - SEPTEMBER 11: A general view of Morca Cave where rescue teams conduct an operation to rescue the American scientist Mark Dickey, trapped in after suffering from gastrointestinal bleeding in Mersin, Turkiye on September 11, 2023. 196 personnel from 8 countries participate in the rescue operation led by Disaster and Emergency Management Presidency (AFAD). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

Members of the CNSAS, Italian alpine and speleological rescuers, start to descent on ropes the Morca cave during a rescue operation near Anamur, south Turkey, Monday, Sept. 11, 2023. A rescue operation is underway in Turkey’s Taurus Mountains to bring out an American researcher who fell seriously ill at a depth of some 1,000 meters (3,000 feet) from the entrance of one of world’s deepest caves last week and was unable to climb out himself. Mark Dickey is being assisted by international rescuers who by Monday had brought him up to 300 meters (nearly 1,000 feet). (CNSAS Via AP)

Members of the CNSAS, Italian alpine and speleological rescuers, start to descent on ropes the Morca cave during a rescue operation near Anamur, south Turkey, Monday, Sept. 11, 2023. A rescue operation is underway in Turkey’s Taurus Mountains to bring out an American researcher who fell seriously ill at a depth of some 1,000 meters (3,000 feet) from the entrance of one of world’s deepest caves last week and was unable to climb out himself. Mark Dickey is being assisted by international rescuers who by Monday had brought him up to 300 meters (nearly 1,000 feet). (CNSAS Via AP)

MERSIN, TURKIYE - SEPTEMBER 10: Rescue teams join efforts to free the American scientist Mark Dickey trapped inside Turkish cave after falling ill in Mersin, Turkiye on September 10, 2023. 196 personnel from 8 countries work in the region at an altitude of 2,200 in the Taurus Mountains. Crew of 14 explorers entered Morca Cave on Sept. 3. Dickey suffered gastrointestinal bleeding while exploring cave at a depth of 1276 meters (4,186 feet). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

MERSIN, TURKIYE - SEPTEMBER 10: Rescue teams join efforts to free the American scientist Mark Dickey trapped inside Turkish cave after falling ill in Mersin, Turkiye on September 10, 2023. 196 personnel from 8 countries work in the region at an altitude of 2,200 in the Taurus Mountains. Crew of 14 explorers entered Morca Cave on Sept. 3. Dickey suffered gastrointestinal bleeding while exploring cave at a depth of 1276 meters (4,186 feet). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

MERSIN, TURKIYE - SEPTEMBER 10: Rescue teams join efforts to free the American scientist Mark Dickey trapped inside Turkish cave after falling ill in Mersin, Turkiye on September 10, 2023. 196 personnel from 8 countries work in the region at an altitude of 2,200 in the Taurus Mountains. Crew of 14 explorers entered Morca Cave on Sept. 3. Dickey suffered gastrointestinal bleeding while exploring cave at a depth of 1276 meters (4,186 feet). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

MERSIN, TURKIYE - SEPTEMBER 10: Rescue teams join efforts to free the American scientist Mark Dickey trapped inside Turkish cave after falling ill in Mersin, Turkiye on September 10, 2023. 196 personnel from 8 countries work in the region at an altitude of 2,200 in the Taurus Mountains. Crew of 14 explorers entered Morca Cave on Sept. 3. Dickey suffered gastrointestinal bleeding while exploring cave at a depth of 1276 meters (4,186 feet). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

MERSIN, TURKIYE - SEPTEMBER 10: Rescue teams join efforts to free the American scientist Mark Dickey trapped inside Turkish cave after falling ill in Mersin, Turkiye on September 10, 2023. 196 personnel from 8 countries work in the region at an altitude of 2,200 in the Taurus Mountains. Crew of 14 explorers entered Morca Cave on Sept. 3. Dickey suffered gastrointestinal bleeding while exploring cave at a depth of 1276 meters (4,186 feet). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

MERSIN, TURKIYE - SEPTEMBER 10: Rescue teams join efforts to free the American scientist Mark Dickey trapped inside Turkish cave after falling ill in Mersin, Turkiye on September 10, 2023. 196 personnel from 8 countries work in the region at an altitude of 2,200 in the Taurus Mountains. Crew of 14 explorers entered Morca Cave on Sept. 3. Dickey suffered gastrointestinal bleeding while exploring cave at a depth of 1276 meters (4,186 feet). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

MERSIN, TURKIYE - SEPTEMBER 10: Rescue teams join efforts to free the American scientist Mark Dickey trapped inside Turkish cave after falling ill in Mersin, Turkiye on September 10, 2023. 196 personnel from 8 countries work in the region at an altitude of 2,200 in the Taurus Mountains. Crew of 14 explorers entered Morca Cave on Sept. 3. Dickey suffered gastrointestinal bleeding while exploring cave at a depth of 1276 meters (4,186 feet). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

MERSIN, TURKIYE - SEPTEMBER 10: Rescue teams join efforts to free the American scientist Mark Dickey trapped inside Turkish cave after falling ill in Mersin, Turkiye on September 10, 2023. 196 personnel from 8 countries work in the region at an altitude of 2,200 in the Taurus Mountains. Crew of 14 explorers entered Morca Cave on Sept. 3. Dickey suffered gastrointestinal bleeding while exploring cave at a depth of 1276 meters (4,186 feet). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

MERSIN, TURKIYE - SEPTEMBER 10: Rescue teams join efforts to free the American scientist Mark Dickey trapped inside Turkish cave after falling ill in Mersin, Turkiye on September 10, 2023. 196 personnel from 8 countries work in the region at an altitude of 2,200 in the Taurus Mountains. Crew of 14 explorers entered Morca Cave on Sept. 3. Dickey suffered gastrointestinal bleeding while exploring cave at a depth of 1276 meters (4,186 feet). Mustafa Unal Uysal / Anadolu Agency/ABACAPRESS.COM

Members of the CNSAS, Italian alpine and speleological rescuers, start to descent on ropes the Morca cave during a rescue operation near Anamur, south Turkey, Monday, Sept. 11, 2023. A rescue operation is underway in Turkey’s Taurus Mountains to bring out an American researcher who fell seriously ill at a depth of some 1,000 meters (3,000 feet) from the entrance of one of world’s deepest caves last week and was unable to climb out himself. Mark Dickey is being assisted by international rescuers who by Monday had brought him up to 300 meters (nearly 1,000 feet). (CNSAS Via AP)

A medical team takes care of American caver Mark Dickey, center, 40, inside the Morca cave near Anamur, southern Turkey, Saturday, Sept. 9, 2023. Rescue teams began the arduous process Saturday of extricating an American researcher who became seriously ill while he was 1,000 meters (3,000 feet) below the entrance of a cave in Turkey, officials said. (Marton Kovacs/Hungarian Cave Rescue Service via AP)

A Turkish officer walks next to the Morca cave during a rescue operation near Anamur, south Turkey, Saturday, Sept. 9, 2023. American researcher Mark Dickey, 40, who fell ill almost 1,000 meters (more than 3,000 feet) below the entrance of a cave in Turkey, has recovered sufficiently enough to be extracted in an operation that could last three or four days, a Turkish official was quoted as saying on Friday. (AP Photo/Khalil Hamra)

A rescuer works on her hiking gear in the European Cave Rescue Association (ECRA) members, camp next to the Morca cave during a rescue operation near Anamur, south Turkey, Saturday, Sept. 9, 2023. American researcher Mark Dickey, 40, who fell ill almost 1,000 meters (more than 3,000 feet) below the entrance of a cave in Turkey, has recovered sufficiently enough to be extracted in an operation that could last three or four days, a Turkish official was quoted as saying on Friday. (AP Photo/Khalil Hamra)

Turkish governor of Mersin, Ali Hamza Pehlivan, front center, during his visit to the Morca cave during a rescue operation near Anamur, south Turkey, Saturday, Sept. 9, 2023. American researcher Mark Dickey, 40, who fell ill almost 1,000 meters (more than 3,000 feet) below the entrance of a cave in Turkey, has recovered sufficiently enough to be extracted in an operation that could last three or four days, a Turkish official was quoted as saying on Friday. (AP Photo/Khalil Hamra)

A European Cave Rescue Association (ECRA) member, goes down into the Morca cave near Anamur, southern Turkey, Friday, Sept. 8, 2023. Turkish and international cave rescue experts are working to save an American speleologist trapped at a depth of more than 1,000 meters (3,280 feet) in a cave in southern Turkey after he became ill. (AP Photo/Khalil Hamra)

European Cave Rescue Association (ECRA) members, camp next to the Morca cave during a rescue operation near Anamur, south Turkey, Friday, Sept. 8, 2023. American researcher Mark Dickey, 40, who fell ill almost 1,000 meters (more than 3,000 feet) below the entrance of a cave in Turkey, has recovered sufficiently enough to be extracted in an operation that could last three or four days, a Turkish official was quoted as saying on Friday. (AP Photo/Khalil Hamra)

European Cave Rescue Association (ECRA) members, camp next to the Morca cave during a rescue operation near Anamur, south Turkey, Friday, Sept. 8, 2023. American researcher Mark Dickey, 40, who fell ill almost 1,000 meters (more than 3,000 feet) below the entrance of a cave in Turkey, has recovered sufficiently enough to be extracted in an operation that could last three or four days, a Turkish official was quoted as saying on Friday. (AP Photo/Khalil Hamra)

A European Cave Rescue Association (ECRA) member, goes down into the Morca cave during a rescue operation near Anamur, south Turkey, Friday, Sept. 8, 2023. American researcher Mark Dickey, 40, who fell ill almost 1,000 meters (more than 3,000 feet) below the entrance of a cave in Turkey, has recovered sufficiently enough to be extracted in an operation that could last three or four days, a Turkish official was quoted as saying on Friday. (AP Photo/Khalil Hamra)

European Cave Rescue Association (ECRA) members, go down into the Morca cave during a rescue operation near Anamur, south Turkey, Friday, Sept. 8, 2023. American researcher Mark Dickey, 40, who fell ill almost 1,000 meters (more than 3,000 feet) below the entrance of a cave in Turkey, has recovered sufficiently enough to be extracted in an operation that could last three or four days, a Turkish official was quoted as saying on Friday. (AP Photo/Khalil Hamra)

European Cave Rescue Association (ECRA) members prepare to go down into the Morca cave during a rescue operation near Anamur, south Turkey, Friday, Sept. 8, 2023. American researcher Mark Dickey, 40, who fell ill almost 1,000 meters (more than 3,000 feet) below the entrance of a cave in Turkey, has recovered sufficiently enough to be extracted in an operation that could last three or four days, a Turkish official was quoted as saying on Friday. (AP Photo/Khalil Hamra)

A European Cave Rescue Association (ECRA) member walks next to the tents camp during a rescue operation in the Morca cave near Anamur, south Turkey, Friday, Sept. 8, 2023. American researcher Mark Dickey, 40, who fell ill almost 1,000 meters (more than 3,000 feet) below the entrance of a cave in Turkey, has recovered sufficiently enough to be extracted in an operation that could last three or four days, a Turkish official was quoted as saying on Friday. (AP Photo/Khalil Hamra)

A European Cave Rescue Association (ECRA) member goes down into the Morca cave during a rescue operation near Anamur, south Turkey, Friday, Sept. 8, 2023. American researcher Mark Dickey, 40, who fell ill almost 1,000 meters (more than 3,000 feet) below the entrance of a cave in Turkey, has recovered sufficiently enough to be extracted in an operation that could last three or four days, a Turkish official was quoted as saying on Friday. (AP Photo/Khalil Hamra)

A European Cave Rescue Association (ECRA) member goes down into the Morca cave during a rescue operation near Anamur, south Turkey, Friday, Sept. 8, 2023. American researcher Mark Dickey, 40, who fell ill almost 1,000 meters (more than 3,000 feet) below the entrance of a cave in Turkey, has recovered sufficiently enough to be extracted in an operation that could last three or four days, a Turkish official was quoted as saying on Friday. (AP Photo/Khalil Hamra)

A European Cave Rescue Association (ECRA) member prepares in front of his tent, to go down into the Morca cave during a rescue operation near Anamur, south Turkey, Friday, Sept. 8, 2023. American researcher Mark Dickey, 40, who fell ill almost 1,000 meters (more than 3,000 feet) below the entrance of a cave in Turkey, has recovered sufficiently enough to be extracted in an operation that could last three or four days, a Turkish official was quoted as saying on Friday. (AP Photo/Khalil Hamra)

A European Cave Rescue Association (ECRA) member goes down into the Morca cave during a rescue operation near Anamur, south Turkey, Friday, Sept. 8, 2023. American researcher Mark Dickey, 40, who fell ill almost 1,000 meters (more than 3,000 feet) below the entrance of a cave in Turkey, has recovered sufficiently enough to be extracted in an operation that could last three or four days, a Turkish official was quoted as saying on Friday. (AP Photo/Khalil Hamra)

A European Cave Rescue Association (ECRA) members walks next to the tents camp during a rescue operation in the Morca cave near Anamur, south Turkey, Friday, Sept. 8, 2023. American researcher Mark Dickey, 40, who fell ill almost 1,000 meters (more than 3,000 feet) below the entrance of a cave in Turkey, has recovered sufficiently enough to be extracted in an operation that could last three or four days, a Turkish official was quoted as saying on Friday. (AP Photo/Khalil Hamra)

Cave rescue teams from several European countries are mounting an extraction effort to get American Mark Dickey, who fell ill while mapping Turkey's Morca cave, back to the surface. (AP Graphic)

This video grab taken from footage released by The Turkish Direction of Communication on September 8, 2023, shows US caver Mark Dickey as he speaks to the camera while standing at a camp in the Morca Cave of the Taurus Mountains in southern Turkey. A US explorer trapped deep in a Turkish cave with internal bleeding said in a video released to AFP on Friday that he needed "a lot of help" getting out. Mark Dickey, 40, reported falling sick on September 2, while exploring the Morca Cave in southern Turkey's Taurus Mountains with an international team. Dickey fell ill at a depth of 1,120 metres (3,675 feet) and has been resting at a base camp located 1,040 metres underground. (Photo by HANDOUT / TURKISH DIRECTION OF COMMUNICATION / AFP) / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO/TURKISH DIRECTION OF COMMUNICATION " - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS

This video grab taken from footage released by The Turkish Direction of Communication on September 8, 2023, shows US caver Mark Dickey as he speaks to the camera while standing at a camp in the Morca Cave of the Taurus Mountains in southern Turkey. A US explorer trapped deep in a Turkish cave with internal bleeding said in a video released to AFP on Friday that he needed "a lot of help" getting out. Mark Dickey, 40, reported falling sick on September 2, while exploring the Morca Cave in southern Turkey's Taurus Mountains with an international team. Dickey fell ill at a depth of 1,120 metres (3,675 feet) and has been resting at a base camp located 1,040 metres underground. (Photo by HANDOUT / TURKISH DIRECTION OF COMMUNICATION / AFP) / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO/TURKISH DIRECTION OF COMMUNICATION " - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS