>> gregg: fox news alert. we are getting new reports that libyan leader muammar gadhafi has fled to algeria. we have not confirmed that. we've also learned that rebel forces have reportedly captured one of gadhafi's sons. we are also learning the rebels have reportedly entered the capital city of tripoli. they are now allegedly within two miles of the city's center meeting little resistance along the way. they may already be there. dominic di-natale streaming live from the tunisia/libyan border. top of the hour now. bring our viewers up-to-date. >> reporter: we are uncertain of the exact location of colonel gadhafi. the bbc world service is reporting that he's in algeria. that corroborates with news we were hearing today that he arrived friday is what we heard. apparently, rebels got news of a convoy of 15 land critesers that crossed the southern tunisian border with libya. they believe that was him leaving the country back in the early hours of friday morning. heading to algeria. that's what they had heard. t