The militant group said Soldiers of the caliphate carried out surprise attacks on government and security centres in the largely government-held southern city of Sweida on Wednesday.
The Britain-based Syrian Observatory for Human Rights said three suicide attackers set off booby-trapped belts in Sweida city, as other blasts hit villages to the north and east.
IS has been largely defeated in Syria and Iraq, but still has pockets of territory in eastern and southern Syria.
... [see source for more information]