U.N. experts have said that arms trafficking out of Libya is fueling conflict, insecurity and terrorism on several continents as they investigate the alleged transfer of weapons to 14 countries, including Lebanon.

Since civil war ousted longtime dictator Moammar Gadhafi in 2011, the experts said "Libya has become a primary source of illicit weapons."

Libya's fugitive ex-prime minister Ali Zeidan has flown to Germany in defiance of a travel ban after changing planes in Malta, Maltese government sources told AFP Wednesday.

Zeidan arrived in Malta on a Libyan state plane Tuesday evening but then switched to a private jet after a brief stopover before departing for Germany, they said.

Militia loyal to the Tripoli authorities were advancing on eastern Libya Wednesday where rebels demanding regional autonomy have begun exporting oil in defiance of the central government, both sides said.

Rebel fighters of the Cyrenaica Defense Force pulled back to the eastern region's historic border after pro-Tripoli militia of the Libya Shield Force pushed them out of the central coastal city of Sirte late Tuesday, a rebel commander told Agence France Presse.

The Libyan parliament ousted Prime Minister Ali Zeidan Tuesday after a tanker laden with crude oil from a rebel-held terminal broke through a naval blockade and escaped to sea.

The no-confidence motion was approved by 124 of the 194 members of the General National Congress, four more than the majority required, MPs said.

A North Korean-flagged tanker laden with oil from a rebel-held terminal in eastern Libya slipped the warships deployed to intercept it and escaped to sea on Tuesday, MPs said.

The Morning Glory, which docked in al-Sidra on Saturday and is reported to have taken on at least 234,000 barrels of crude, is the first vessel to have loaded oil from a rebel-held terminal since the revolt against the Tripoli authorities erupted last July.

Libyan authorities stopped a North Korean-flagged tanker as it left a rebel-held port on Monday with an "illegal" shipment of crude, a military source said.

Former rebels calling for autonomy for eastern Libya have been blockading the port of al-Sidra and other key export terminals in the region since July last year.

The United States accused Libyan separatists of theft Sunday after they loaded oil onto a North Korean tanker for a second consecutive day, warning would-be buyers of possible liabilities and sanctions.

The separatists are former rebels who have turned against the interim authorities in the restive north African country after toppling veteran dictator Moamer Kadhafi in the 2011 uprising.

Libyan separatists loaded oil onto a North Korean tanker for a second consecutive day on Sunday, ignoring the central government's threats of military action, an industry official said.

The separatists are former rebels who have turned against the interim authorities in the restive North African country after toppling veteran strongman Moammar Gadhafi in the 2011 uprising.

Militants blockading the Libyan oil terminal of Al-Sidra tried Saturday to load crude aboard a North Korean-flagged ship, in the latest challenge to government control of exports, a lawmaker said.

A member of the energy committee in Libya's interim parliament, the General National Congress, said "the oil tanker, bearing the name Morning Glory, anchored on Saturday at 4:00 am (0200 GMT) at the port of Al-Sidra."

Human Rights Watch urged Niger to explain its decision to extradite a son of late Libyan dictator Moammar Gadhafi on Thursday.

"The authorities in Niger should explain why they were convinced that Saadi Gadhafi would not be mistreated and would get a fair trial," said Sarah Leah Whitson, HRW's Middle East and North Africa director.