Cross is seen in car damaged by bullet holes at a crossroad that was the centre of fierce fighting between the Ukrainian army and Pro-Russian armed men, near the town of Slaviansk in eastern Ukraine
A cross is seen in a car damaged by bullet holes at a crossroad that was the centre of fierce fighting between the Ukrainian army and Pro-Russian armed men, near the town of Slaviansk in eastern Ukraine May 5, 2014. Four Ukrainian paramilitary police were killed in fighting on Monday with pro-Russian separatists near the rebel stronghold of Slaviansk, the Interior Ministry said, in renewed violence Kiev is struggling to stop across the east. REUTERS/Baz Ratner (UKRAINE - Tags: POLITICS CIVIL UNREST)
A bullet hole is seen at a kiosk near the town of Slaviansk in eastern Ukraine
A bullet hole is seen at a kiosk located in a crossroads that was the center of fierce fighting between the Ukrainian army and pro-Russian armed men near the town of Slaviansk in eastern Ukraine May 5, 2014. Pro-Russian separatists ambushed Ukrainian forces on Monday, triggering heavy fighting on the outskirts of the rebel stronghold of Slaviansk, Interior Minister Arsen Avakov was quoted as saying. REUTERS/Baz Ratner (UKRAINE - Tags: POLITICS CIVIL UNREST)
Cyclist rides by burnt car at a crossroad that was the centre of fierce fighting between the Ukrainian army and Pro-Russian armed men, near the town of Slaviansk in eastern Ukraine
A cyclist rides by a burnt car at a crossroad that was the centre of fierce fighting between the Ukrainian army and Pro-Russian armed men, near the town of Slaviansk in eastern Ukraine May 5, 2014. Four Ukrainian paramilitary police were killed in fighting on Monday with pro-Russian separatists near the rebel stronghold of Slaviansk, the Interior Ministry said, in renewed violence Kiev is struggling to stop across the east. REUTERS/Baz Ratner (UKRAINE - Tags: POLITICS CIVIL UNREST)
A bullet is lodged in a drinks vending machine at a kiosk near the town of Slaviansk in eastern Ukraine
A bullet is lodged in a drinks vending machine at a kiosk located in a crossroad that was the center of fierce fighting between the Ukrainian army and pro-Russian armed men near the town of Slaviansk in eastern Ukraine May 5, 2014. Pro-Russian separatists ambushed Ukrainian forces on Monday, triggering heavy fighting on the outskirts of the rebel stronghold of Slaviansk, Interior Minister Arsen Avakov was quoted as saying. REUTERS/Baz Ratner (UKRAINE - Tags: POLITICS CIVIL UNREST)
The self-styled mayor of Luhansk region Bolotov answers journalists' questions in the seized regional government headquarters in Luhansk
The self-styled mayor of Luhansk region Valery Bolotov answers journalists' questions in the seized regional government headquarters in Luhansk, eastern Ukraine, May 5, 2014. Pro-Russian separatists ambushed Ukrainian forces on Monday, triggering heavy fighting on the outskirts of the rebel stronghold of Slaviansk, Interior Minister Arsen Avakov was quoted as saying. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST)
Pro-Russian activist's tent is seen among tulips near the seized office of the SBU state security service in Luhansk
A pro-Russian activist's tent is seen among tulips near the seized office of the SBU state security service in Luhansk, eastern Ukraine, May 5, 2014. Pro-Russian separatists ambushed Ukrainian forces on Monday, triggering heavy fighting on the outskirts of the rebel stronghold of Slaviansk, Interior Minister Arsen Avakov was quoted as saying. REUTERS/Vasily Fedosenko (UKRAINE - Tags: POLITICS CIVIL UNREST)
Police stand guard near a regional government building at the Black Sea port of Odessa
Police stand guard near a regional government building at the Black Sea port of Odessa May 5, 2014. Ukraine's Interior Minister drafted a new special forces unit into the southern port city of Odessa on Monday after what he called the "outrageous" failure of police to tackle pro-Russian separatists in a weekend of violence that killed dozens. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST)
Member of the Ukrainian Interior Ministry security forces stands guard inside a regional government building at the Black Sea port of Odessa
A member of the Ukrainian Interior Ministry security forces stands guard inside a regional government building at the Black Sea port of Odessa May 5, 2014. Ukraine's Interior Minister drafted a new special forces unit into the southern port city of Odessa on Monday after what he called the "outrageous" failure of police to tackle pro-Russian separatists in a weekend of violence that killed dozens. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST)
Police stand guard near a regional government building at the Black Sea port of Odessa
Police stand guard near a regional government building at the Black Sea port of Odessa May 5, 2014. Ukraine's Interior Minister drafted a new special forces unit into the southern port city of Odessa on Monday after what he called the "outrageous" failure of police to tackle pro-Russian separatists in a weekend of violence that killed dozens. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST)
Police stand guard inside a regional government building at the Black Sea port of Odessa
Police stand guard inside a regional government building at the Black Sea port of Odessa May 5, 2014. Ukraine's Interior Minister drafted a new special forces unit into the southern port city of Odessa on Monday after what he called the "outrageous" failure of police to tackle pro-Russian separatists in a weekend of violence that killed dozens. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST)