German Foreign Minister Guido Westerwelle on Sunday said Berlin will have no choice but to accept the lifting of an EU arms embargo on Syria if other European countries push for it.

Germany up to now has opposed providing military support to Syria's rebels, but Britain and France are pushing for the embargo to be allowed to expire at the end of May.

Syria's National Coalition head Ahmad Moaz al-Khatib has refiled his resignation and an interim leader is being sought, a fellow member and a source close to the main opposition group said on Sunday.

Khatib insists on resigning, almost a month after first announcing he was stepping down and two weeks before NC leadership elections are scheduled to take place.

Israeli Prime Minister Benjamin Netanyahu on Sunday vowed Israel would "exact a price" from the Gaza militants who recently fired missiles from Sinai at the southern resort city of Eilat.

"Last week missiles were fired from Sinai at Eilat," Netanyahu said at the start of his weekly cabinet meeting.

Hot air balloon flights resumed in the city of Luxor on Sunday, nearly two months after a deadly accident killed 19 tourists, Egyptian officials told Agence France Presse

Four flights took off from the ancient temple city, with around 70 tourists on board, said Ahmed Abboud who heads the Balloon Flights union.

U.S. Secretary of State John Kerry discussed U.S. efforts to revive the Middle East peace process with the Palestinian leader on Sunday and was to meet Turkey's prime minister for talks on getting its relations with Israel back on track.

Kerry and Palestinian President Mahmoud Abbas, who have met several times recently, talked for an hour-and-a-half to "continue the conversation that they've been having for several weeks now about how to get both sides (the Palestinians and the Israelis) back to the table," a State Department official said.

A suspected U.S. drone strike in Yemen killed two al-Qaida militants and destroyed an arms cache on Sunday, a security official and witnesses said.

The raid targeted a house in Wadi Abida, in the central province of Marib, where the two unnamed militants were killed, the official said.

A Syrian government daily on Sunday accused the United States of having "thrown oil on the fire" of the country's conflict by doubling its aid to the opposition.

"The meeting of the so-called 'Friends of Syria' held in Istanbul yesterday has thrown oil on the fire of the Syrian conflict," said Al-Watan.

An Iranian U.S.-made F-5 fighter plane crashed Sunday after hitting a mountain in the west of the country, killing both crew members, Iranian media reported.

The two pilots were killed upon impact as the jet fighter hit the mountain near Abadan town of Ilam province, town governor Morad Naseri was quoted as saying.

Jordan police have arrested eight Syrians on suspicion of inciting riots at a refugee camp near the Jordan-Syria border, a Jordanian security official said Sunday.

About 100 Syrian refugees threw stones at police on Friday for preventing some of them from sneaking out of their desert camp. Ten police officers were wounded, including two who remain in critical condition.

Israeli airline staff went on strike on Sunday to protest against a government proposal to finalize a deregulation plan with European carriers which they say would result in widespread layoffs.

"Implementing the Open Skies agreement in its current format will have severe ramifications, which would fatally and irreversibly harm civilian aviation in Israel," Histadrut trade union chairman Ofer Eini said in a letter addressed to Prime Minister Benjamin Netanyahu.