Dozens of miners were trapped underground and feared dead after a blast on Wednesday at a coal mine in the eastern Ukrainian rebel stronghold of Donetsk.
Mine officials said the explosion was most likely caused by gas and not link
The United States and its allies are discussing imposing more sanctions against Russia for undermining a European-brokered truce in eastern Ukraine, US Secretary of State John Kerry said on Saturday.
Kerry made the comments as he
Fighting persisted in east Ukraine on Friday despite new European efforts to ensure a ceasefire takes hold.
The Ukrainian military said pro-Russian separatists had attacked positions held by government troops 49 times in the past
Shelling stopped abruptly at midnight on Saturday in the eastern Ukrainian city of Donetsk after President Petro Poroshenko ordered government forces to halt firing in line with a ceasefire agreement aimed at ending the country's bloody conf
Ukraine and Russian-backed rebels fought fiercely for control of a strategic railway junction on Friday despite a new peace deal brokered by Germany and France.
A ceasefire is due to come into effect from Sunday under the agreemen
Pro-Russian separatists have intensified shelling of government forces on all front lines and appear to be amassing forces for new offensives on the key railway town of Debaltseve and the coastal city of Mariupol, Ukraine's military said on
The West should not rule out the military option in Ukraine, Nato's top military commander said on Saturday, adding that he was referring to the possibility of helping Ukraine with weapons and equipment rather than sending in soldiers.
A new round of peace talks got under way involving Ukraine and separatists on Saturday, even as fighting between Kiev government forces and the Russian-backed rebels raged in Ukraine's east, claiming civilian and military lives.
Ukraine's government and pro-Russian separatists on Friday exchanged hundreds of prisoners of war while Kiev said it would suspend all train and bus service to Crimea, effectively creating a transportation blockade to and from the region.
US President Barack Obama said on Saturday that Russia's aggression against Ukraine was 'appalling' and a threat to the world, while European nations threatened further sanctions against Moscow if it did not end the flow of weapons a