From AFP via Yahoo:

Deputy Prime Minister Mustafa Abu Shagur, in remarks on Twitter, condemned the actions as “crimes” for which which the culprits should be held responsible.

He had asked the defence and interior ministries on Friday to intervene “but they have not carried out their duty in protecting these sites.”

The radicals used an excavator to demolish part of the mausoleum of Al-Shaab Al-Dahman, close to the centre of the Libyan capital, the correspondent said.

It was the second such assault on a Muslim pilgrimage site in as many days.

On Friday, hardliners blew up the mausoleum of Sheikh Abdessalem al-Asmar in Zliten, 160 kilometres (100 miles) east of Tripoli, a town which was rocked by deadly clashes earlier this week.

A video posted on social networking sites purported to show the building being blown up to cries of “Allahu Akbar (God is greatest).”

Witnesses told AFP on Saturday that another mausoleum, that of Sheikh Ahmed al-Zarruq, had been destroyed in the port of Misrata 200 kilometres (125 miles) east of Tripoli.

Hardline Sunni Islamists are implacably opposed to the veneration of tombs of revered Muslim figures, saying that such devotion should be reserved for God alone.