Three children were killed in a strike in Donetsk, a city in eastern Ukraine controlled by Russian forces, its pro-Russian mayor said on Friday. “As a result of a barbaric nighttime strike in the Petrovsky district of our city by Ukrainian Nazis,” a house was targeted and caught fire, Alexei Kulemzin wrote on Telegram.

This incident comes as Russia began voting this Friday for the presidential election which lasts three days, until Sunday, and which must renew Vladimir Putin for a new six-year term.