A pro-Russian separatist stands guard nearby a rally in support of Novorossiya (New Russia) on Lenin Square in the center of Donetsk
A pro-Russian separatist stands guard nearby a rally in support of Novorossiya (New Russia) on Lenin Square in the center of the eastern Ukrainian city of Donetsk, July 13, 2014. Russia threatened Ukraine on Sunday with "irreversible consequences" after a Russian man was killed by a shell fired across the border, while Kiev said Ukrainian warplanes struck again at separatist positions in the east of the country, inflicting big losses. Although both sides have reported cross-border shootings in the past, it appears to be the first time Moscow has reported fatalities on its side of the border in the three-month conflict which has killed hundreds of people in Ukraine. REUTERS/Maxim Zmeyev (UKRAINE - Tags: POLITICS CIVIL UNREST MILITARY TPX IMAGES OF THE DAY)
A pro-Russian separatist stands with the flag of Novorossiya (New Russia) nearby a rally in support of Novorossiya on Lenin Square in the center of Donetsk
A pro-Russian separatist stands with the flag of Novorossiya (New Russia) nearby a rally in support of Novorossiya on Lenin Square in the center of the eastern Ukrainian city of Donetsk, July 13, 2014. Russia threatened Ukraine on Sunday with "irreversible consequences" after a Russian man was killed by a shell fired across the border, while Kiev said Ukrainian warplanes struck again at separatist positions in the east of the country, inflicting big losses. Although both sides have reported cross-border shootings in the past, it appears to be the first time Moscow has reported fatalities on its side of the border in the three-month conflict which has killed hundreds of people in Ukraine. REUTERS/Maxim Zmeyev (UKRAINE - Tags: POLITICS CIVIL UNREST MILITARY)
A pro-Russian separatist stands guard nearby a rally in support of Novorossiya (New Russia) on Lenin Square in the center of Donetsk
A pro-Russian separatist stands guard nearby a rally in support of Novorossiya (New Russia) on Lenin Square in the center of the eastern Ukrainian city of Donetsk, July 13, 2014. Russia threatened Ukraine on Sunday with "irreversible consequences" after a Russian man was killed by a shell fired across the border, while Kiev said Ukrainian warplanes struck again at separatist positions in the east of the country, inflicting big losses. Although both sides have reported cross-border shootings in the past, it appears to be the first time Moscow has reported fatalities on its side of the border in the three-month conflict which has killed hundreds of people in Ukraine. REUTERS/Maxim Zmeyev (UKRAINE - Tags: POLITICS CIVIL UNREST MILITARY)
Russia warns Ukraine after shell crosses border
UKRAINE-CRISIS/ (PIC, TV, WRAPUP 4)=2:WRAPUP 4-Russia warns Ukraine after shell crosses border
A woman reacts at a temporary hostel for refugees from Donetsk region, in the city of Donetsk
A woman reacts at a temporary hostel for refugees from Donetsk region, in the city of Donetsk July 13, 2014. REUTERS/Maxim Zmeyev (UKRAINE - Tags: POLITICS CIVIL UNREST SOCIETY TPX IMAGES OF THE DAY)
Injured pro-Russian separatists from the so-called Battalion Vostok (East) recuperate at a hospital in Donetsk
Injured pro-Russian separatists from the so-called Battalion Vostok (East) recuperate at a hospital, located at the base of the battalion, in Donetsk July 13, 2014. REUTERS/Maxim Zmeyev (UKRAINE - Tags: POLITICS CIVIL UNREST HEALTH)
Women and children are seen at a temporary hostel for refugees from Donetsk region, in the city of Donetsk
Women and children are seen at a temporary hostel for refugees from Donetsk region, in the city of Donetsk July 13, 2014. REUTERS/Maxim Zmeyev (UKRAINE - Tags: POLITICS CIVIL UNREST SOCIETY)
A woman reacts at a temporary hostel for refugees from Donetsk region, in the city of Donetsk
A woman reacts at a temporary hostel for refugees from Donetsk region, in the city of Donetsk July 13, 2014. REUTERS/Maxim Zmeyev (UKRAINE - Tags: POLITICS CIVIL UNREST SOCIETY)
An injured pro-Russian separatist from the so-called Battalion Vostok (East) poses for a picture at a hospital in Donetsk
An injured pro-Russian separatist from the so-called Battalion Vostok (East) poses for a picture at a hospital, located at the base of the battalion, in Donetsk July 13, 2014. REUTERS/Maxim Zmeyev (UKRAINE - Tags: POLITICS CIVIL UNREST HEALTH)
An injured pro-Russian separatist from the so-called Battalion Vostok (East) sits on a bed at a hospital in Donetsk
An injured pro-Russian separatist from the so-called Battalion Vostok (East) sits on a bed at a hospital, located at the base of the battalion, in Donetsk July 13, 2014. REUTERS/Maxim Zmeyev (UKRAINE - Tags: POLITICS CIVIL UNREST HEALTH)