National Transitional Council (NTC) forces say they have cornered loyalists of Muammar Gaddafi in a small area in the centre of Sirte, the hometown of the deposed Libyan leader that has become the key battleground in their final push to control the country.<br /><br />Al Jazeera's Tony Birtley, reporting metres away from the frontline on Tuesday afternoon, said that the "noose was tightening" around Gaddafi's remaining fighters, but that they were waging a fierce rearguard effort, and had "a lot of ammunition and a lot of resolve"
