Libyan forces were fighting street by street to oust is militants from their former North African stronghold of Sirte. The forces, led by brigades from the city of Misrata secured several key sites in Sirte this week; their progress helped by U.S. Air strikes against is that began this month. The brigades said that they had gained control of a radio building previously used by is for broadcasting. The building is close to the Ouagadougou convention complex, a symbolic landmark in Sirte that the brigades seized this past week.