Tsentr pm Shelling kills 6 civilians in Donetsk , city officials say . 73 Ukrainian troops are released by pro-Russian rebels in Donetsk . - The United States and the European Union impose sanctions on Russia over its actions in Ukraine. As shelling continues , officials in Donetsk describe the situation as `` critical ''
Shelling kills 6 civilians in Donetsk , city officials say . 73 Ukrainian troops are released by pro-Russian rebels in Donetsk . - The United States and the European Union impose sanctions on Russia over its actions in Ukraine. As shelling continues , officials in Donetsk describe the situation as `` critical ''