Austrian oil and gas giant OMV reported on Thursday "record" 2012 results, with net profit soaring 26 percent as production in Libya recovered after the 2011 uprising that toppled Moamer Khadafi.

"In 2012, we managed to deliver a record financial performance while successfully progressing our strategy," chief executive Gerhard Roiss said in a statement.

Libya on Sunday celebrated two years since the start of the revolt that toppled Moammar Gadhafi, with security forces on high alert amid fears of a fresh violence that have plagued the north African nation.

The anniversary of the uprising that ended with Gadhafi's killing in October 2011 comes as Libya's new rulers battle critics calling for a "new revolution" and accusing them of failing to usher in much-needed reforms.

Libyan authorities in the eastern city of Benghazi have arrested four people suspected of carrying out Christian missionary activities, a security official said on Sunday.

"An Egyptian, a South African, a South Korean and a Swede who holds a U.S. passport, were arrested on Tuesday at a printing house, where they were printing books calling for conversion to Christianity," Hussein bin Hameida told Agence France Presse.

Thousands of people gathered in Libya's two main cities Tripoli and Benghazi on Friday to celebrate two years since the start of the revolution that ousted long-time strongman Moammar Gadhafi.

In central Tripoli, hundreds of people assembled in Martyrs' Square, waving flags and balloons and chanting slogans praising the martyrs of the Libyan revolution as cars drove through the capital sounding their horns.

Ousted dictator Moammar Gadhafi's last prime minister redirected public funds to support the regime's armed forces during Libya's bloody uprising in 2011, a witness in his trial said on Monday.

Former premier al-Baghdadi al-Mahmoudi stands accused of killing civilians and of financial crimes.

"Not a day goes by without tombs being vandalized," says Dalmasso Bruno, caretaker of the Italian cemetery in the Libyan capital where Christians fear rising Muslim extremism.

"Human bones have been taken out of their tomb and scattered across the cemetery" in central Tripoli, he said. "The Libyan authorities came and took pictures. They promised to take measures but nothing has been done."

International Criminal Court judges on Thursday demanded that Libya hand over Moammar Gadhafi's former spy chief Abdullah Senussi to face charges of crimes against humanity.

The latest broadside in the legal tug-of-war between The Hague-based ICC and Tripoli over where Senussi and Gadhafi's son Seif al-Islam should be tried repeated a demand for Senussi to be handed over.

Following the footsteps of the United Arab Emirates, Libya kicked off an "undeclared" campaign to expel Lebanese citizens under the pretext of having ties with Hizbullah, al-Akhbar daily said Thursday.

Under claims of “relations with Hizbullah,” Lebanese are being expelled from Gulf countries mainly the United Arab Emirates, from the U.S., African and European countries and now Libya.

Two years after the start of the uprising that ousted Moammar Gadhafi, Libya's new rulers are under attack for lack of reforms and face protests on February 15 being touted by some as a "second revolution".

Faced with growing rumblings in the street, the authorities have put security forces on high alert ahead of the protests as well as celebrations two days later marking the second anniversary of the "February 17 Revolution" that led to Gadhafi's ouster and being killed in October 2011.

Security guards at Libya's parliament have beaten up a crew of Alassema, an independent television network, the channel told Agence France Presse on Sunday.

"A team from (Alassema TV) went to cover a meeting of the national assembly on Friday, entering as they were permitted to," the channel's press office director Fethi Ben Aissa said.