At least 14 fighters from the Ahrar al-Sham rebel group in Syria were killed by bomb attacks on Sunday, the Syrian Observatory for Human Rights monitoring group said.

Two blasts hit a rebel base in a village east of Saraqeb in Idlib province, the British-based Observatory reported.

Ahrar al-Sham said in a statement a lone attacker had driven a motorbike up to the building, detonating explosives attached to himself and a bomb on the bike at the same time, killing and wounding dozens of rebels.

It blamed the Islamic State of Iraq and the Levant (ISIL, also known as ISIS) for the attack. There was no immediate claim of responsibility.

Photos on social media showed bloodied corpses and a blackened motorbike outside a small building in the village. The pictures could not immediately be verified.