BEIRUT — Syrian activists say a car bomb attack targeting a checkpoint near a military airport in the capital has killed or wounded more than 20 soldiers.

The Britain-based Syrian Observatory for Human Rights said Monday there were 20 casualties in the blast in the western Damascus district of Mazzeh, but did not state how many were deaths or how many were injuries.

Syrian state media confirmed the blast that occurred late Sunday, but have not released the number of those killed and injured.

Mazzeh is an upscale neighborhood of Damascus that houses several embassies and a military airport.

At least 93,000 people have been killed in Syria's 2-year-old conflict.