Explosions around Gaddafi compound

Heavy fighting is taking place in areas of Tripoli for a second day, with opposition forces concentrating their firepower on Libyan leader Muammar Gaddafi's compound in the Bab al-Azizya district of the Libyan capital.
The al-Mansoura district was also the focus of fierce clashes between government forces and opposition fighters on Tuesday, two days after the rebels marched into the heart of the city, prompting scenes of jubiliation.
But Gaddafi's forces are reportedly fighting back using heavy weapons including mortars and shells fired in the direction of Green Square, which rebels have renamed Martyrs' Square, casting doubts on opposition claims that much of the city was under their control.
Al Jazeera's James Bays said he could see smoke rising into the sky from the vicinity of Gaddafi's compound. The Libyan leader's whereabouts is unknown.
"The battle is certainly not over. The city is on a knife edge," our correspondent said.
There have been reports of NATO planes flying very low on top of Gaddafi's compound.
In a dramatic development, Saif al-Islam, the son of Libyan leader Muammar Gaddafi, appeared in al-Mansouraearly on Tuesday morning to refute claims that he had been captured by opposition forces and rally government loyalists.
"There is confusion among the ranks of opposition fighters on the ground," Al Jazeera's Zeina Khodr reporting from Tripoli said. "Some people are asking whether the National Transitional Council has been infiltrated."
The head of Libya's opposition National Transitional Council (NTC) on Monday announced the end of Gaddafi's decades-long rule.
But the re-appearance of Saif, an influential figure who is wanted by the International Criminal Court, has raised fresh questions about the NTC leadership's grip on a fast-changing situation.
http://english.aljazeera.net/news/africa/2011/08/20118234144136279.html