Libya's interim government forces have stormed into the desert town Bani Walid, expanding their multi-pronged offensive against Moammar Gadhafi's remaining strongholds. Witnesses said explosions and gunfire echoed throughout the area today , as fighters for the National Transitional Council (NTC) met strong resistance from Gadhafi loyalists. The charge into Bani Walid comes a day after several thousand fighters with the revolutionary forces advanced into the centre of Mr. Gadhafi's hometown Sirte. NTC military officials said they faced heavy resistance from elite loyalist troops and snipers, and media reports said the fighting was still going . Meanwhile, Turkish Prime Minister Recep Tayyip Erodgan arrived in the Libyan capital Tripoli today as part of his Arab world tour and to show support for the country's fledgling new government.