At least 36 pro-Syrian government troops have been killed by a Turkish air strike in the region of Afrin, a monitoring group says.
The strike targeted a camp at Kafr Jina in the northern Syrian region, the Syrian Observatory for Human Rights (SOHR) said.
The pro-government troops entered Afrin two weeks ago to back Kurdish forces.
They are fighting a Turkish military offensive that was launched to clear Kurdish groups from Afrin.
Turkey considers the Kurdish militiamen there terrorists.
The Syrian government has denounced the offensive as a “blatant attack” on its sovereignty and, according to state media, forces were sent in to support the Kurds.