Dozens of Palestinians held a protest in the Old City of annexed east Jerusalem on Saturday, hurling rocks at Israeli police and setting ablaze garbage bins, a police spokeswoman said.

"Dozens of Palestinians threw rocks at police forces near Nablus Gate. Two of them were arrested," said Luba Samri.

Gunmen abducted the elderly father of Syrian Deputy Foreign Minister Faisal Muqdad on Saturday, apparently in reprisal for the arrest of one of their relatives, according to a government source and a watchdog.

"Today armed men abducted Mr Muqdad's father from his home in the village of Ghossom," in the southern province of Daraa, the government source said on condition of anonymity

Turkish Prime Minister Recep Tayyip Erdogan will sue opposition leader Kemal Kilicdaroglu after he compared him to Syria's embattled president over deadly bombings near the border, media reported Saturday.

"We will not allow anyone to call the prime minister of the Turkish Republic a 'murderer'," Erdogan was quoted as saying by the Vatan newspaper during a visit to Washington.

A bomb exploded Saturday in a Tripoli street housing the Algerian, Greek and Saudi embassies, lightly damaging a car, hours after a soldier was wounded in a bombing in Libya's second city Benghazi.

A security source said the homemade bomb, locally known as "gelatina", had been placed near a car on a street in the central district of Dahra where the three embassies are located.

A Palestinian youth was killed when a tunnel linking Egypt to the Gaza Strip collapsed on Saturday, Palestinian medical sources said.

"Mussa Ghonaim, 26 years old, was killed in the tunnel collapse south of the town of Rafah," the sources said.

Yemen's air force has been the target of "sabotage", the country's military aviation chief said in a televised interview, days after a fighter jet crashed in the capital Sanaa.

"The air force is the target of systematic sabotage," General Rashed al-Janad told the private channel Al-Saida in the interview broadcast late on Friday.

Rebels in Syria have seized control of four deserted Alawite villages in the central province of Hama, the Syrian Observatory for Human Rights said on Saturday.

President Bashar Assad hails from the Alawite community, which is an offshoot of Shiite Islam, while the rebels are predominantly Sunni Muslims.

Tunisian security forces deployed in strength on Saturday after Salafist movement Ansar al-Sharia called on its hardline Islamist supporters to defy a government ban on its annual congress.

There was a heavy police presence at tollbooths along the main highway from the capital to the central city of Kairouan where the Salafists have vowed to hold Sunday's gathering, Agence France Presse correspondents reported.

Violence in Iraq killed 11 people on Saturday including a police officer, his wife and two children, while gunmen kidnapped up to 10 people, among them police, officials said.

The attacks are the latest in a wave of violence that has killed more than 270 people since the beginning of May, as tensions simmer between Iraq's Sunni minority and Shiite majority.

Suspected Al-Qaida gunmen shot dead a Yemeni intelligence officer in a drive-by attack in the southern city of Mukalla, capital of the southeastern Hadramawt province, a police source said on Saturday.

Two men riding a motorbike shot Colonel Abdullah al-Ribaki on Friday evening in a residential area of Mukalla, the source said, adding: "Al-Qaida is behind this killing."