President Bashar Assad must fall, "all the killing" must end and the Syrian army must withdraw from all cities before any dialogue can begin with the regime, rebel chief Selim Idriss said on Monday.

The Free Syrian Army's chief of staff Idriss spoke to pan-Arab broadcaster Al-Arabiya after a groundbreaking statement in Moscow by Foreign Minister Walid al-Muallem that Assad's regime is "ready for dialogue with all who want dialogue, including those who are carrying arms".

Coalition chief Ahmed Moaz al-Khatib said Monday that the Syrian opposition would consider participating in the next Friends of Syria meeting after receiving "specific" promises of support from key nations.

"The leaders of the (Syrian National) Coalition will meet today to discuss promises made by several major countries, which have asked us to cancel the boycott and give clear and specific support for the Syrian people," he told reporters in Cairo.

The U.N. human rights chief and several nations criticized the Security Council Monday for failing to take action to halt spiraling violence in Syria and bring to justice perpetrators of abuses in the conflict.

"The Security Council has so far failed with regard to Syria," Navi Pillay told ministers at the start of a regular U.N. Human Rights Council session in Geneva.

The Syrian regime denied on Monday that Hizbullah fighters are intervening in the battles in the Syria against rebels.

"One thing needs to be made absolutely clear, there is not a single Hizbullah fighter in Syria," Syrian Information Minister Omran al-Zohbi told Iranian Arabic-language television channel Al-Alam.

Head of the criminal court of cassation Judge Joseph Samaha stepped down from ex-Minister Michel Samaha Case over a family relationship, the state-run National News Agency reported on Monday.

According to the news agency, the judge sought to step down not to be "embarrassed" as the ex-Minister is a relative and hails from the same town.

The Syrian regime is ready to talk with all parties, including armed rebels, who want dialogue to end the conflict, Foreign Minister Walid al-Muallem said on Monday at talks with his Russian counterpart Sergei Lavrov.

"We are ready for dialogue with all who want dialogue, including those who are carrying arms," Muallem said at the Moscow talks with Lavrov, in an apparent reference to the rebels battling the regime of President Bashar Assad.

Lebanese Forces leader Samir Geagea expressed relief on Monday over the efforts exerted by President Michel Suleiman and Prime Minister Najib Miqati to reach common ground among the rival March 14 and 8 alliances on the electoral law.

He revealed in comments published in An Nahar newspaper that Suleiman and Miqati called Speaker Nabih Berri and al-Mustaqbal parliamentary bloc leader MP Fouad Saniora, hoping that the efforts to resolve the dispute would be achieved.

A Jordanian policeman and two Syrian children were injured on Sunday when refugees rioted at the Zaatari camp in northern Jordan, prompting police to use tear gas to disperse them, a government official said.

The unrest involving around 200 Syrians broke out after a visitor to the camp distributed money to the refugees, said Anmar Hmud, a government spokesman for Syrian refugee issues said

A senior U.S. official on Sunday urged the Syrian opposition to withdraw its threat to pull out of an international meeting in Rome on Thursday which new Secretary of State John Kerry will attend.

National Coalition chief Ahmed Moaz al-Khatib said on Saturday it was pulling out of the 11-nation meeting of the Friends of Syria to protest at the "shameful" inaction of the international community in the face of civilian killings.

The jihadist al-Nusra Front on Sunday claimed responsibility for a suicide attack earlier this month on an army factory in the central province of Hama that reportedly killed at least 60 people.

"Thank God, your brothers in al-Nusra Front... carried out a martyrdom (suicide) operation that targeted an army factory in the town of Tal Baraq in Hama province," on February 6, the jihadist group said in a statement posted on the Internet.