A man stands at a symbolic cross made with flowers and candles, on the spot of recent deadly clashes between opposition protesters and riot police in center of Kiev, Ukraine, Saturday, March 1, 2014. Official reports say 92 people were killed, hundreds wounded. The pro-Russian prime minister of Ukraine's restive Crimea is claiming control of all military forces, police and other security services in the region. In a statement reported by local and Russian news agencies on Saturday, Sergei Aksenov declares that the armed forces, the police, the national security service and border guards will answer only to his orders. He says that any commanders who don't agree should leave their posts.(AP Photo/Efrem Lukatsky)

Young women light candles at a makeshift shrine in Kiev's Independence square, as protests continued nearby, on March 2, 2014. Ukraine said today it would call up all military reservists after President Vladimir Putin's threat to invade Russia's neighbour drew a blunt response from US President Barack Obama. The stark escalation in what threatens to become the worst crisis in relations since the Cold War came as pro-Russian forces seized control of key government buildings and airports in the strategic Crimean peninsula. AFP PHOTO / LOUISA GOULIAMAKI

People lay flowers and candles on the spot of recent deadly clashes between opposition protesters and riot police in center of Kiev, Ukraine, Saturday, March 1, 2014. Official reports say 92 people were killed, hundreds wounded. The pro-Russian prime minister of Ukraine's restive Crimea is claiming control of all military forces, police and other security services in the region. In a statement reported by local and Russian news agencies on Saturday, Sergei Aksenov declares that the armed forces, the police, the national security service and border guards will answer only to his orders. He says that any commanders who don't agree should leave their posts.(AP Photo/Efrem Lukatsky)

People lay flowers and candles on the spot of recent deadly clashes between opposition protesters and riot police in center of Kiev, Ukraine, Saturday, March 1, 2014. Official reports say 92 people were killed, hundreds wounded. The pro-Russian prime minister of Ukraine's restive Crimea is claiming control of all military forces, police and other security services in the region. In a statement reported by local and Russian news agencies on Saturday, Sergei Aksenov declares that the armed forces, the police, the national security service and border guards will answer only to his orders. He says that any commanders who don't agree should leave their posts.(AP Photo/Efrem Lukatsky)

General view of Maidan Square still occupied by the protesters on 26th of February 2014, in Kiev, Ukraine. It's not clear and any date has been produced for effective evacuation of the square by the movement.

General view of Maidan Square still occupied by the protesters on 26th of February 2014, in Kiev, Ukraine. It's not clear and any date has been produced for effective evacuation of the square by the movement.

Every corner, every wall of Maidan Square has become a memorial for the victims, people are bringing flowers and create many different points for praying around the zone of conflict on 26th of February 2014, in Kiev, Ukraine.

General view of Maidan Square still occupied by the protesters on 26th of February 2014, in Kiev, Ukraine. It's not clear and any date has been produced for effective evacuation of the square by the movement.

Every corner, every wall of Maidan Square has become a memorial for the victims, people are bringing flowers and create many different points for praying around the zone of conflict on 26th of February 2014, in Kiev, Ukraine.

Every corner, every wall of Maidan Square has become a memorial for the victims, people are bringing flowers and create many different points for praying around the zone of conflict on 26th of February 2014, in Kiev, Ukraine.

Every corner, every wall of Maidan Square has become a memorial for the victims, people are bringing flowers and create many different points for praying around the zone of conflict on 26th of February 2014, in Kiev, Ukraine.

General view of Maidan Square still occupied by the protesters on 26th of February 2014, in Kiev, Ukraine. It's not clear and any date has been produced for effective evacuation of the square by the movement.

Every corner, every wall of Maidan Square has become a memorial for the victims, people are bringing flowers and create many different points for praying around the zone of conflict on 26th of February 2014, in Kiev, Ukraine.

Every corner, every wall of Maidan Square has become a memorial for the victims, people are bringing flowers and create many different points for praying around the zone of conflict on 26th of February 2014, in Kiev, Ukraine.

General view of Maidan Square still occupied by the protesters on 26th of February 2014, in Kiev, Ukraine. It's not clear and any date has been produced for effective evacuation of the square by the movement.

General view of Maidan Square still occupied by the protesters on 26th of February 2014, in Kiev, Ukraine. It's not clear and any date has been produced for effective evacuation of the square by the movement.

Every corner, every wall of Maidan Square has become a memorial for the victims, people are bringing flowers and create many different points for praying around the zone of conflict on 26th of February 2014, in Kiev, Ukraine.

Every corner, every wall of Maidan Square has become a memorial for the victims, people are bringing flowers and create many different points for praying around the zone of conflict on 26th of February 2014, in Kiev, Ukraine.

From early in the morning Kiev's people pay homage to the heroes of the revolution bringing flowers and praying for them in Maidan Square on 26th of February 2014, in Kiev, Ukraine.

From early in the morning Kiev's people pay homage to the heroes of the revolution bringing flowers and praying for them in Maidan Square on 26th of February 2014, in Kiev, Ukraine.

Every corner, every wall of Maidan Square has become a memorial for the victims, people are bringing flowers and create many different points for praying around the zone of conflict on 26th of February 2014, in Kiev, Ukraine.

From early in the morning Kiev's people pay homage to the heroes of the revolution bringing flowers and praying for them in Maidan Square on 26th of February 2014, in Kiev, Ukraine.

From early in the morning Kiev's people pay homage to the heroes of the revolution bringing flowers and praying for them in Maidan Square on 25th of February 2014, in Kiev, Ukraine.

From early in the morning Kiev's people pay homage to the heroes of the revolution bringing flowers and praying for them in Maidan Square on 25th of February 2014, in Kiev, Ukraine.

General view of Maidan Square still occupied by the protesters on 25th of February 2014, in Kiev, Ukraine. It's not clear and any date has been produced for effective evacuation of the square by the movement.

General view of Maidan Square still occupied by the protesters on 25th of February 2014, in Kiev, Ukraine. It's not clear and any date has been produced for effective evacuation of the square by the movement.

General view of Maidan Square still occupied by the protesters on 25th of February 2014, in Kiev, Ukraine. It's not clear and any date has been produced for effective evacuation of the square by the movement.