>> thank you. >> gregg: fox news alert. rebel forces in libya say 13 of their own fighters have been killed by friendly fire. they apparently got caught up in a nato air strike against their common enemy, missouri, and his forces. the attack happened as the rebels were getting ready to storm a key oil city. hunter powell is streaming live from ajdabiayh, libya. conner? >> gregg, nato continues to enforce this no-fly zone. we just heard jets flying above a few minutes ago. but it isn't becoming increasingly difficult to enforce as the front lines blur, as gadhafi troops and rebels engage in different parts of northern libya here. today, according to nato officials, they are investigating reports that nato coalition jets may have mistakenly dropped bombs on a rebel fighting position, according to rebels here, they say 13 fights were killed and many injured after some rebel