Voting for a constitutional panel will take place Wednesday in five Libyan regions where violence stopped people from going to polling stations as planned this week, the electoral commission said.

While Libyans voted Thursday to elect a panel to draft a new constitution across most of the North African country, violence prevented the process in four regions in the south and one in the east.

A Libyan air force medical plane crashed south of Tunis early on Friday, killing all 11 people on board, Tunisian officials said.

The aircraft crashed in a field on the edge of the village of Nianou, around 40 kilometers (25 miles) from the capital, but managed to avoid any houses, an AFP journalist reported.

Libyans went to the polls Thursday to elect a panel to draft a new constitution in the latest milestone in the chaotic political transition following the overthrow of Moammar Gadhafi.

There was none of the enthusiasm that marked Libya's first free election in July 2012 as public frustration mounts over the weak central government's failure to restore order in the wake of the Arab Spring uprising.

Libyans went to the polls on Thursday to elect a constituent assembly in the latest milestone in the chaotic political transition from the ousted dictatorship of Moammar Gadhafi.

But there was none of the voter enthusiasm that marked Libya's first free election in July 2012 as public frustration mounts over the post-Gadhafi government's failure to restore order.

When Arab Spring protests erupted in early 2011, Morocco's February 20 pro-reform movement mobilized mass demonstrations, but three years on its goals remain frustrated and regional turmoil has dampened demand for change.

The movement that once brought tens of thousands onto the streets of main cities now musters just a few dozen activists to call for democratic reforms or denounce the high cost of living.

Libya's interim assembly said it was facing an impending "coup" Tuesday after ex-rebel militias gave it a five-hour deadline to hand over power.

The potential crisis comes exactly three years after the start of the Arab Spring uprising that toppled strongman Moammar Gadhafi but left the sprawling North African country with a weak central government that has struggled to impose order on former rebel brigades.

Libyans on Monday marked the third anniversary of their revolt which ousted dictator Moammar Gadhafi fearful for the future of a country plagued by lawlessness.

Putting on a brave face, Prime Minister Ali Zeidan, who was briefly abducted last year by militants, said revolution had achieved the goals of "ending tyranny and securing freedom of expression".

Libya's parliament has reached consensus on holding early elections, yielding to popular pressure after it had extended its mandate that ended on February 7, deputies said Sunday.

The agreement comes as the North African country on Monday prepares to mark three years since the start of the revolution that overthrew long-time strongman Moammar Gadhafi.

Thousands of Libyans took to the streets for the second consecutive Friday to protest against a decision by the interim parliament to extend its mandate.

The General National Congress (GNC), Libya's top political authority, was elected in July 2012 for a term of 18 months and tasked with leading the country's transition after the 2011 uprising.

Niger on Friday handed over to Libya slain dictator Moammar Gadhafi's former chief of internal security Abdullah Mansur, the Libyan government announced.

A government statement said Tripoli had given the authorities in Niamey evidence implicating Mansur "in planning terrorist acts aimed at destabilizing Libya".