Russia and Ukraine blamed each other for breaking an Easter ceasefire announced by Vladimir Putin, with both sides accusing the other of carrying out attacks.

U.S. officials will meet in London this week with European and Ukrainian negotiators to discuss the latest American proposals to end the conflict.

The head of Ukraine's southern Kherson region says that Russian attacks during the 30-hour Easter ceasefire unilaterally declared by President Vladimir Putin over the weekend killed three people in the region.