More than 100 tanks have been seized from a militia loyal to Libya's ousted leader Muammar Gaddafi that posed as "revolutionaries" in the region of Tarhuna, the interior ministry said on Thursday.
A ministry official said an investigation into twin car bomb attacks on Sunday helped to detect the militia housed in barracks in Souk al-Ahad near Tarhuna, 60 kilometres (35 miles) southeast of Tripoli.
"More than 100 tanks and 26 missile launchers were seized" from the militia, Abdelmonem al-Hur, spokesman for the interior ministry's High Security Committee, told a news conference.
The car bombs killed two people and wounded four others in Tripoli in the dawn attacks which took place as Muslims prepared to attend prayers on the first day of the Eid al-Fitr holidays.
The spokesman said that one person was killed and eight others were wounded as security forces arrested the militia's leader, Khaled Ibrahim Krid, in an operation on Wednesday.
The interior ministry on Wednesday reported clashes between Tarhuna members of the security services and suspects allegedly involved in Sunday's blasts.
The pro-Gaddafi militia known as Katibat al-Awfiya (Brigade of the Faithful) was known internally as the "Brigade of Martyr Moamer Gaddafi," who was killed last October, according to Hor.
"We believed the Katibat defended Libya and the revolution, but it turned out to be contrary," he said.