At least 13 people have been killed after a bus was hit by shelling in the eastern Ukraine city of Donetsk, say reports.

Ukraine’s defence ministry blamed pro-Russian rebels, saying in a statement: “On Thursday, the terrorists shelled a trolleybus in Donetsk.

“The terrorists shelled the passenger transport from city residential areas controlled by the illegal militias.”

But Moscow has blamed the attack on Ukrainian troops branding it as a “crime against humanity”, aimed at undermining efforts to resolve the bloody conflict, which has claimed the lives of more than 5,000 people.

Following the deadly strike, separatists paraded around 20 captured Ukrainian soldiers through the streets of Donetsk as angry residents hurled pieces of glass and abuse at them.