Tripoli: Muammar Gaddafi's regime is in control of Tripoli, Seif al-Islam, the strongman's son, claimed on Tuesday.

"Tripoli is under our control. Everyone should rest assured. All is well in Tripoli," he told journalists outside Gaddafi's compound at Bab al-Azizya.

"You have seen how the Libyan people rose up" to fight the rebels who arrived in Tripoli, he told a small group of journalists.

"The West has high-tech technology which disrupted telecommunications systems and sent messages to the people," declaring the fall of the regime, he said, referring to text phone messages sent on Sunday to Tripoli residents.

"This is a technological and media war to cause chaos and terror in Libya," he added.

"They also infiltrate gangs of plunderers (in the capital) by sea and in cars," he added, referring to rebel reinforcements arriving in the capital.

Seif al-Islam, wanted by the International Criminal Court for crimes against humanity and who ICC prosecutor Luis Moreno-Ocampo earlier said had been arrested by the rebels, claimed the insurgents had suffered "heavy casualties" yesterday when they stormed Gaddafi's Bab al-Azizya compound in Tripoli.

"I am here to refute the lies," he said about reports of his arrest.

Gaddafi's elder son Mohammad escapes

Libyan leader Muammar Gaddafi's elder son, Mohammad, has escaped, Al Jazeera said. He was captured by the rebels earlier on Monday.

Mohammad, who was arrested in his house during an interview with Al Jazeera, fled with the help of one of the rebels, RIA Novosti reported.

Two other Gaddafi's sons, Saif al-Islam and Saadi, were arrested earlier.

Fresh clashes between the rebel troops and security forces loyal to Gaddafi erupted on Sunday on the outskirts of the Libyan capital, Tripoli.

Fighting was still raging on Monday evening around Gaddafi's compound in Tripoli but the whereabouts of the Libyan leader, who ruled the oil-rich country for over 40 years after seizing power in a bloodless coup in 1969, were still unknown.

Libyan rebels Monday tightened their grip on Tripoli with the capture of three of Muammar Gaddafi's sons and a hunt was on for the 68-year-old Libyan leader.

Rebel commanders said they have taken control of about 80 percent of the city following an overnight assault on the capital, BBC reported.

World leaders have urged Gaddafi to step down, and Egypt has recognised the rebels as the legitimate government.

Libyans seeking Gaddafi's ouster rejoiced on Sunday after news that two of the ruler's sons -- Saif al-Islam and Saadi -- had been arrested by opposition forces.

On Monday, a third Gaddafi son, Mohammed, was also taken into custody, the broadcaster said. Gaddafi's elder son Mohammad escapes from rebels

(Agencies)