The six Gulf states recognized a newly formed opposition bloc as the Syrian people's legitimate representative on Monday, as border violence stoked fears of a spillover of the country's 20-month conflict.

The Gulf Cooperation Council move came a year to the day after the Arab League suspended Syria's membership, and as the National Coalition met Arab foreign ministers in Cairo buoyed by the hard-won unity deal.

Syria's opposition agreed to unite after marathon talks in Doha, electing a moderate cleric as its leader with a prominent dissident and a female opposition figure named as his deputies.

Here are brief profiles of the three top figures of the newly-formed National Coalition:

NATO is ready to help member state Turkey as the 20-month conflict in Syria is increasingly spilling across the border, the alliance's chief Anders Fogh Rasmussen said Monday.

"Turkey can rely on NATO solidarity, we have more plans in place to defend and protect Turkey, our ally, if needed," Rasmussen told reporters in Prague, but declined to go into details.

Iran on Monday called for improved ties with neighboring Iraqi Kurdistan, particularly on the economic front, as the autonomous region's prime minister visited Tehran, media reports said.

President Mahmoud Ahmadinejad told the visiting premier, Nechirvan Barzani, that strengthened relations with Kurdistan could benefit Iraq, the presidency website reported.

The trial of four former Israeli military chiefs charged over a deadly 2010 raid on a Gaza-bound Turkish flotilla has been adjourned to February 21, the relief group that organized the mission said on Monday.

Israel has angrily denounced the case as a "show trial" and none of the four defendants have appeared in the dock at the Istanbul court where the trial opened November 6.

Palestinian leader Yasser Arafat's tomb was screened from public view on Monday in what a Palestinian official said was preparation for forensic examination of his body.

AFP journalists saw the iconic leader's mausoleum, at the entrance to presidential headquarters in the West Bank city of Ramallah, was surrounded by blue tarpaulins.

A Saudi was beheaded by the sword on Monday after being convicted of murdering a fellow citizen in the kingdom's oil-rich Eastern Province, the interior ministry said.

Mohammed bin Abdullah al-Shamri was found guilty of shooting dead Mohammed bin Jaloud al-Anzi, the ministry said in a statement carried by the official SPA news agency.

Israeli troops fired tank shells into Syria on Monday in retaliation for a mortar round that struck near an army post in the Golan Heights, scoring "direct hits" on the source of the fire, the army said.

"A short while ago, a mortar shell hit an open area in the vicinity of an IDF (army) post in the central Golan Heights, as part of the internal conflict inside Syria, causing no damage or injuries," it said.

Iraq will renegotiate a massive weapons deal with Russia, a spokesman said on Monday, after Baghdad cancelled a $4.2 billion agreement that would have made Moscow Iraq's biggest supplier after the U.S.

The cancellation on account of graft concerns of the initial deal, announced last month while Iraqi Prime Minister Nuri al-Maliki was visiting Moscow, was a setback for Russia's attempts to firm up its slipping foothold in the Middle East and also threw into doubt efforts by Iraq to equip its armed forces.

The International Federation of Red Cross and Red Crescent Societies launched an emergency appeal Monday for 32.3 million Swiss francs ($34.1 million, 26.8 million euros) to help up to 170,000 Syrian refugees in Turkey.

"The Turkish Red Crescent Society is extending its existing response to prepare for the onset of winter and to increase its assistance to up to 170,000 displaced people over the coming months," the IFRC said in a statement.