Italian Prime Minister Mario Monti arrived in Libya Saturday to revive a treaty of friendship and to offer his nation's expertise in training police in the North African country, an AFP correspondent said.

Monti, on his first visit to Libya since the fall Moammar Gadhafi, is leading a delegation of high-ranking officials, including Foreign Minister Giulio Terzi and Admiral Giampaolo Di Paola.

Speaker Nabih Berri stressed on Friday the importance of Lebanon exploiting its petroleum wealth, saying that the oil will bring the country economic comfort.

He added before members of the Editors Syndicate: “The state appointments and formation of the petroleum regulatory authority should be a priority for the government.”

Dressed in green military fatigues and clutching CVs under their arms, young Libyans who fought Moammar Gadhafi are now signing up to register for government jobs.

Some of these men spent months fighting Gadhafi’s forces on the front lines of the conflict that erupted last February and have provided security on Libya's streets since fighting ended in October, after Gadhafi was killed.

The deputy head of Libya's National Transitional Council was manhandled by protesters on Thursday in the cradle of the uprising that ousted Moammar Gadhafi last year, witnesses said.

Abdul Hafiz Ghoga, who also serves as official spokesman for the interim government, had to be escorted away after being mobbed by angry students at the University of Ghar Younis in Libya's second-largest city Benghazi, the NTC's wartime base.

Foreign Minister Adnan Mansour on Monday said he was confident that missing Imam Moussa al-Sadr and his two companions were still alive, upon his return from a several-day visit to Libya, where the three were last seen.

“The Libyan leaders expressed their readiness to closely follow up on the case,” Mansour said in an interview with NBN television.

Egypt's military ruler Field Marshal Hussein Tantawi arrived in Libya on Monday on a visit to boost ties between the two neighbors whose longtime autocratic leaders were toppled last year, an Agence France Presse photographer said.

The trip marks Tantawi's first state visit since the Supreme Council of the Armed Forces which he heads took over following the ouster of President Hosni Mubarak last February after an 18-day popular revolt.

The head of Libya’s National Transitional Council Mustapha Abdul Jalil stated on Friday that missing persons will be found throughout Libya, adding that so far missing Imam Moussa al-Sadr’s fate remains unknown.

He said after holding talks in Libya with Foreign Minister Adnan Mansour: “We have placed great importance on this issue and a Lebanese-Libyan committee has been formed to find out what has happened to him.”

Libya is probing the mysterious disappearance of revered Lebanese Shiite Imam Moussa al-Sadr who went missing in Tripoli 33 years ago, Foreign Minister Adnan Mansour told reporters on Thursday.

"The investigation is on... there is a commission of inquiry chaired by the Libyan attorney general" which is probing the case, Mansour said after meeting Mustafa Abdel Jalil, the head of Libya's ruling National Transitional Council (NTC).

Libya is ready to work with Lebanon to probe the mysterious disappearance of Shiite Imam Moussa al-Sadr who went missing upon arrival in Tripoli in 1978, an official said Wednesday.

The ruling National Transitional Council was "ready to form a joint commission with the Lebanese to investigate" what happened to Sadr, said Fathi Baja, head of political affairs at the NTC.

Foreign Minister Adnan Mansour said Wednesday he was visiting Libya to receive information on the investigations into the fate of Imam Moussa al-Sadr and to turn the black page of the past in the Lebanese-Libyan ties.

In remarks to As Safir daily published Wednesday, Mansour said: “We are not going there for exploration but to get the final result of the case of Imam Moussa al-Sadr and his companions.”