A Ukrainian soldier was killed and four others injured on Tuesday when heavy fighting erupted in eastern Ukraine, the country's military said, as it and Russian-backed separatists blamed each other for the flare-up.
The violence was some of the worst since a Paris summit in December tried to narrow positions between Kiev and the separatists on implementing a peace deal, and it comes ahead of a possible second summit on the same issue in Berlin.
Ukrainian President Volodymyr Zelenskiy said he would convene a national security council meeting to discuss the latest flare-up in the country's Donbass region.