At least 37 people have been killed in suicide bombing attacks by Islamic State targeting Kurdish secret police headquarters in northeast Syria, a monitoring group says.
The attack left 32 people dead, including civilians and Kurdish members of the US-backed Syrian Democrcatic Forces (SDF), the Britain-based Syrian Observatory for Human Rights says.
Five suicide bombers blew themselves up targeting the Kurdish secret police (Asayish) in the area of Rajm al-Salibi.
The attacks were followed by gun battles between additional attackers and Kurdish militants who are manning the area.
"The area where attacks took place is where many refugees escaping the violence in Iraq were gathering," Rami Abdel Rahman, head of the Observatory said.
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He added that the attackers might have come from Iraq.
The attacks took place as Kurdish militants backed by the US-led coalition were continuing their mission in the town of Tabqa.
Tabqa sits on a strategic supply route about 55 kilometres west of al Raqqa, the de facto capital of Islamic State in Syria.
Meanwhile a father and his five children, aged between 6 and 14, were killed on Tuesday after the town of al-Lataminah in Syria's northern central province of Hama came under attack, the observatory said.
