Activists: 42 prisoners killed in air strike on Islamic State-run jail in Syria
An air strike targeting an Islamic State-run jail in eastern Syria has killed at least 42 prisoners, activists said.
The Britain-based Syrian Observatory for Human Rights said at least 15 IS jailers and fighters were also killed in the air strike that happened in the Deir El-Zour province on Monday.
The activist-run Deir Ezzor 24 media outlet said at least 60 civilians were killed.
It says the building belonged to an al Qaida-linked commander before it was seized by the IS group in 2014.
The two groups said the US-led coalition was behind the strike.
It was not clear how they identified the aircraft responsible.
The coalition could not immediately be reached for comment.
In addition to the coalition, Russia and Syria often carry out air strikes against IS in eastern Syria.