Prisoners mutinied in a northwestern Syria prison Monday following a deadly earthquake, with at least 20 escaping the jail holding mostly ISIS members, a source at the facility told AFP.

The military police prison in the town of Rajo near the Turkish border holds about 2,000 inmates, with about 1,300 of them suspected to be ISIS fighters, said the source. The prison also holds fighters from Kurdish-led forces.

“After the earthquake struck, Rajo was affected and inmates started to mutiny and took control of parts of the prison”, - said the official at Rajo jail, which is controlled by pro-Turkish factions.

“About 20 prisoners fled... who are believed to be [ISIS members]”.