BREAKING: Heavy explosion struck rebel checkpoint in Daraa, scores killed (video)

Media sources said that a car bomb exploded Monday evening at a checkpoint of the so-called “Free Army” in the area of Musaifrah in rural Daraa.
The sources confirmed that dozens fighters were injured and killed.
Video footage released online emerges aftermath of the explosion that occured in Al-Musaifrah.
Al-Musaifrah is a town in southern Syria, administratively part of the Daraa Governorate, located east of Daraa and 37 kilometers southeast of Damascus.
Details to come.