Anti-Gaddafi forces fire from tanks in the front line in Sirte October 18, 2011.

Anti-Gaddafi fighters fire from a tank at pro-Gaddafi forces who are cornered in a neighbourhood on the seaside in Sirte, October 18, 2011.

Anti-Gaddafi fighters fire a heavy machine gun mounted on the back of a pickup truck at pro-Gaddafi forces who are cornered in a neighbourhood on the seaside in Sirte October 18, 2011.

A Libyan National Transitional Council (NTC) fighter fires a rocket-propelled grenade during a street battle in Sirte on October 18, 2011. Fierce street fighting erupted in Moamer Kadhafi's sole remaining bastion of Sirte as streets reverberated with the sound of heavy gunfire, rockets and mortars.

A revolutionary fighter sprays fire at Gadhafi loyalists in downtown Sirte, Libya, Tuesday, Oct. 18, 2011. About 1,000 Libyan revolutionary troops have launched a major assault on Moammar Gadhafi's hometown, surging from the east to try to capture the last area under loyalist control.

Libyan National Transitional Council (NTC) fighters take position during a street battle in Sirte on October 18, 2011. Fierce street fighting erupted in Moamer Kadhafi's sole remaining bastion of Sirte as streets reverberated with the sound of heavy gunfire, rockets and mortars.

A Libyan National Transitional Council (NTC) fighter falls on the ground after being shot during a street battle in Sirte on October 18, 2011. Fierce street fighting erupted in Moamer Kadhafi's sole remaining bastion of Sirte as streets reverberated with the sound of heavy gunfire, rockets and mortars.

Libyan National Transitional Council (NTC) fighters run towards a comrade after he was shot during a street battle in Sirte on October 18, 2011. Fierce street fighting erupted in Moamer Kadhafi's sole remaining bastion of Sirte as streets reverberated with the sound of heavy gunfire, rockets and mortars.

Libyan National Transitional Council (NTC) fighters carry a comrade who was wounded during a street battle in Sirte on October 18, 2011.

A Libyan National Transitional Council (NTC) sniper takes position inside a building in Sirte on October 18, 2011.

In this Monday, Oct. 17, 2011 photo, revolutionary fighters runs across the street under heavy sniper fire carrying Bangladeshi children who were trapped in Sirte, Libya, during the entire siege of the city. Revolutionary fighters pushed hard on Monday to clear the remaining pockets resistance in Sirte but their efforts to advance were hampered severely by the well trained snipers still loyal to the Gadhafi regime.

A Libyan National Transitional Council (NTC) sniper fires at forces loyal to Moamer Kadhafi during battles in Sirte on October 17, 2011.

A Libyan government sniper aims his assault rifle during clashes with pro-Gaddafi forces in Sirte October 16, 2011. Libyan government fighters battled on Sunday to subdue pockets of resistance by pro-Gaddafi fighters, whose refusal to abandon the ousted leader's hometown of Sirte is delaying Libya's move to democracy. Ruling National Transitional Council (NTC) forces kept up their bombardment of a small area in the centre of Sirte but there was no push under way from ground troops.

A view of the street after a violent clashes between Libyan interim government forces and loyalists of Muammar Gaddafi in Sirte October 18, 2011.