CNNW John King USA August 22, 2011
90% of contribute ptripoli. one of his three captured sons has escaped. let's he get the late frst from libya and sara sidner. first tell me what's going on there in zawiya. >> reporter: we were hearing a lot of loud booms, a lot of what sounded like mortar fire. there was definitely small arms fire. it sounded like this was a firefight and we went and checked it out. and we think that we have confirmed, we've only talked to one of the rebels who has not been down at the square, but we think that it is again celebratory fire. but what they're using are things like anti-aircraft missi...