This amateur video from Syria purports to capture the moments after a suicide car bomb blast.<br/> <br />It reportedly happened at a checkpoint on the outskirts of the capital, Damascus, on Saturday.<br/> <br />Reuters can't verify the video.<br/> <br />But a monitoring group says a suicide bomber from the al Qaeda-linked Nusra Front was responsible.<br/> <br />The bomb blast was followed by clashes with rebels, says the pro-opposition Syrian Observatory for Human Rights, killing at least 16 members of Syria's security forces.<br/> <br />The group also says government fighter jets retaliated by striking opposition-held areas nearby.<br/> <br />Activists say rebel forces captured the checkpoint and were battling to take a second one nearby.
