Unidentified armed individuals block the base of the Ukrainian border guard service in Balaklava, near Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

Unidentified armed individuals block the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

Unidentified armed individuals with armoured vehicles block the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

Unidentified armed individuals with armoured vehicles block the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

An unidentified armed individual in an armoured vehicle blocks the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

An unidentified armed individual in an armoured vehicle blocks the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

An unidentified armed individual in an armoured vehicle blocks the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

Unidentified armed individuals with armoured vehicles block the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014, near a sign (R) reading "The border of the country is sacred and untouchable". Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

A Russian flag is seen in the foreground as unidentified armed individuals in armoured vehicles block the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

Unidentified armed individuals with armoured vehicles block the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

Unidentified armed individuals with armoured vehicles block the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

Unidentified armed individuals with armoured vehicles block the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

Unidentified armed individuals with armoured vehicles block the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

Unidentified armed individuals with armoured vehicles block the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

Unidentified armed individuals with armoured vehicles block the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

Unidentified armed individuals with armoured vehicles block the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

Ukrainian officers speak as unidentified armed individuals (foreground) block the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

Unidentified armed individuals block the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

A woman pushes a pram past as unidentified armed individuals with armoured vehicles block the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV

An elderly man walks past as unidentified armed individuals block the base of the Ukrainian border guard service in Sevastopol, on March 1, 2014. Ukraine's border guard service said on March 1 that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. "The head of this group said that there are orders from the Russian defence minister to seize this naval post," Ukraine's border guard service said in a statement, adding that the men wore "full battle fatigues". AFP PHOTO/ VASILIY BATANOV