That should be the National Transitional Council (NTC) above.

Here's an update clip from Al Jazeera:

Libyan rebels have reportedly entered the fortified compound of leader Muammar Gaddafi in Bab al-Azizya in Tripoli, amid intensified fighting with regime forces.

According to reports that could not be independently verified, rebels have entered the compound at least through one gate.

"It is very clear that there is a major battle raging within that compound," Al Jazeera's James Bays said, reporting from Tripoli.

Fighting also continued across the capital for a second day on Tuesday, and columns of grey smoke were seen billowing over the Bab al-Azizya area with the sound of gunfire and occasional explosions ringing out.

Opposition forces were concentrating their firepower on Gaddafi's compound, Al Jazeera reported..

Charley Noble