Fighting continued between rebels and forces loyal to Libyan leader Muammar Gaddafi in the capital, Tripoli. A rebel spokesman said, his forces came under fire from tanks emerging from Col Gaddafi's compound at Bab al-Azizia in western Tripoli on Monday. Witnesses say, there has been sustained gunfire in the area throughout the day.Gaddafi loyalists remain in control of the area further south around the Rixos Hotel, where many Western journalists are based. Rebel commanders say they have taken control of about 80% of the capital, including the headquarters of state TV. But fighting is still raging in parts of the city, and the rebels have not managed to find the Libyan leader. Rebels said, Mohammed Gaddafi, a son of Muammar Gaddafi, has escaped. He was captured under dramatic circumstances while giving an interview to the Al-Jazeera on Sunday.World leaders have urged Col Gaddafi to step down. US President Obama said his 42-year rule is was coming to an end.UN Secretary General Ban Ki-moon has appealed for smooth transition of power in Libya and has asked the forces loyal to Muammar Gaddafi to cease violence immediately.Talking to reporters in Washington, Ban said he plans to discuss the issue with India and other members of the UN Security Council. Ban also reminded UN members that they have the duty to comply with the International Criminal Court which has issued arrest warrants against Col. Gaddafi, his son Saif al-Islam and his intelligence chief. Some rebel leaders have said they would rather try them in Libya than hand him over to the court in The Haig.