Prime Minister Hamadi Jebali is due to announce on Saturday the results of lengthy consultations on a reshuffle of Tunisia's cabinet, a government statement said.

Jebali, of the ruling Islamist party Ennahda, "will make a statement to reporters on the result of consultations with the political parties on a government reshuffle, at 1:00 pm (1400 GMT) on Saturday," the statement said.

Tunisia's draft constitution still lacks full provision for human rights despite making some progress, Human Rights Watch said on Wednesday in a letter to the National Constituent Assembly.

The U.S.-based watchdog said that it wrote urging the interim parliament to "amend those articles of the second draft of the constitution that risk undermining human rights."

Tunisian President Moncef Marzouki will make his first visit to Gaza on February 9, officials from the Hamas government told Agence France Presse on Sunday.

"Tunisia President Marzouki will carry out a very important visit to the Gaza Strip on February 9," Hamas official Ghazi Hammad said, without giving details of the president's itinerary, or who would be accompanying him.

Tunisia's foreign minister said on Tuesday that his country was in principle opposed to all non-African military operations on the continent, as France pushed ahead with its assault on armed Islamists in Mali.

"We believe that the problems arising in Africa must be resolved within an African framework," Rafik Abdessalem said, addressing the French military campaign against al-Qaida-linked Islamist groups in Mali that began on Friday.

The mausoleum in Sidi Bou Said, a prime Tunisian tourism destination, has been ravaged by fire in what is thought to have been an arson attack which the presidency on Sunday denounced as a criminal act.

"This crime against our culture and history must not go unpunished," a presidency statement said, urging police to "spare no efforts in arresting the criminals" who set alight the mausoleum on the outskirts of Tunis on Saturday.

Tunisian soldiers were deployed on Sunday in a town near the border with Libya after a week of clashes between police and residents protesting over social inequalities, Agence France Presse reported.

Units from the army and national guard were sent a day before Monday's second anniversary of the Tunisian revolt that began the Arab Spring, sparked by unemployment and tough living conditions.

Clashes broke out again on Saturday between residents and police in Ben Guerdane near Tunisia's border with Libya after nearly a week of demonstrations over poor living conditions.

Ben Guerdane, around 30 kilometers (20 miles) from the border, has witnessed sporadic unrest since Sunday, fuelled by Tripoli's decision to close the Ras Jdir border crossing in early September for security reasons.

The prime ministers of Libya, Algeria and Tunisia decided on Saturday to reinforce border security and join forces tackling regional challenges including terrorism, arms trafficking and organized crime.

The decision was taken by Libyan Prime Minister Ali Zeidan, Algerian Prime Minister Abdelmalek Sellal and Tunisian Prime Minister Hamadi Jebali during a meeting in the southern Libyan oasis of Ghadames.

Amnesty International expressed concern on Saturday over Tunisia's draft constitution, saying the text contains ambiguous provisions that fail to uphold international human rights standards.

The rights watchdog made the comments on the eve of a meeting of the National Constituent Assembly and ahead of the second anniversary on Monday of the overthrow of Tunisian strongman Zine El Abidine Ben Ali.

Rached Ghannouchi, who heads Tunisia's ruling Islamist party, warned on Friday, three days ahead of the revolution's second anniversary, against the country sliding into chaos amid social unrest.

"Several countries have succeeded in ousting regimes but not then installing a democratic state because liberties become corrupted, as in Somalia," the Ennahda chief told a gathering of supporters in the capital's Raoued suburb.