At least 110 civilians were killed or wounded in an explosion at a petrol station in the village of Ain Issa, in Raqa province in northeast Syria, the Syrian Observatory for Human Rights said.
“Lawyers and activists in the area say the blast was caused by aerial bombardment,” the Britain-based watchdog added.
The human rights group, which has a network of activists across Syria, cited an activist in the region saying that more than 110 people were among the dead and wounded.
Air crash in Damascus
Earlier on Thursday, a Syrian military helicopter that went down outside the capital Damascus crashed after an accident with a civilian aircraft, state television said.
“This morning’s helicopter crash resulted from an accident in the air when the helicopter’s rotor clipped the tail of a Syrian Air plane carrying 200 passengers,” the broadcaster said.