Moammar Gadhafi’s spymaster Abdullah Senussi was arrested on Sunday, Libyan officials announced and said that the dead dictator's son captured the previous day would face trial in Libya.

Ignoring world pressure, Libya's interim rulers insisted that Seif al-Islam, Gadhafi’s one-time heir apparent, would be tried inside Libya rather than at the International Criminal Court at The Hague.

At least four people were killed on Sunday as security forces tried to clear protesters from Cairo's Tahrir Square, casting a dark shadow over Egypt's first elections since Hosni Mubarak's downfall.

Police and military forces used batons, tear gas and birdshot to clear the central square of thousands of protesters who are demanding that the ruling military cede power to a civilian authority.

Syria's Foreign Minister Walid Muallem on Sunday dismissed as "wishful thinking" a warning by U.S. Secretary of State Hillary Clinton that his country risked descending into civil war.

"When Mrs. Clinton says the opposition is well-armed ... it is, as they say in English, 'wishful thinking'," Muallem told a news conference in Damascus.

Syrian anti-regime protesters and their Egyptian supporters clashed with backers of President Bashar al-Assad on Sunday outside the Arab League headquarters in Cairo.

The anti-Assad protesters, who had set up camp outside the Arab League, said about 150 Assad loyalists carrying a poster of the embattled president tried to attack their tent but they drove them off with the help of Egyptian protesters.

Turkish President Abdullah Gul said there was "no place for authoritarian regimes" in the Mediterranean region, heaping more pressure on the embattled Syrian regime, in comments published Sunday.

"I strongly believe that there is no place any more for authoritarian regimes -- single party systems that do not have accountability or transparency -- on the shores of the Mediterranean," he told Britain's Sunday Telegraph newspaper.

Arab foreign ministers are to hold crisis talks over Syria in Cairo on Thursday, the Arab League said after it rejected changes proposed by Damascus to its proposal to send an observer mission there.

"The Arab League council will hold an extraordinary meeting on Thursday, at the level of foreign ministers, and will be presided by Qatar," Arab League Deputy Secretary General Ahmed bin Hilli told reporters.

Syrian security forces shot dead at least four civilians on Sunday in Idlib province in the northwest and in Homs province in the center, the Syrian Observatory for Human Rights said.

Among 17 dead on Saturday, the Britain-based watchdog reported seven civilians killed in the Idlib town of Kfar Kharim, close to the Turkish border.

A United Nations Security Council meeting on Yemen scheduled for Monday has been postponed for a week, the world body's senior envoy to the Arabian Peninsula country told AFP on Sunday.

"The Security Council meeting was postponed to November 28 at the request of the protagonists" of the Yemeni crisis, said U.N. envoy Jamal Benomar, who has been in Sanaa since last week for talks on ending 10 months of political deadlock and bloodshed.

Israel's communications ministry has shut down an Israeli-Palestinian radio station, accusing it of operating a pirate broadcast because it is licensed in the Palestinian territories.

Mossi Raz, the co-director of the "Kol Hashalom" or "All for Peace" radio station, confirmed the closure in comments to Israeli public radio on Sunday.

Israel's ambassador to Egypt, Yitzhak Levanon, returned to Cairo on Sunday after he was evacuated in September following an attack on the embassy, an airport official told Agence France Presse.

"Levanon arrived in the early hours of Sunday on a Turkish Airlines flight from Istanbul," the official said.