A building used to prepare for a future referendum in Melitopol, Ukraine, to decide whether or not the city should join Russia was also allegedly destroyed.
Multiple explosions could be heard late on Saturday and early on Sunday in the centre of the separatist-controlled city of Donetsk in eastern Ukraine, a Reuters reporter said.
Украина - Взрыв на шахте в Донецкой области: 10 пострадавших daily.com.ua - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from daily.com.ua Daily Mail and Mail on Sunday newspapers.