President Abdel Fattah al-Sisi said Egypt will never return to the corrupt ways of the past, after a court dismissed murder charges against former leader Hosni Mubarak.

"The new Egypt, which emerged from the January 25 (2011) and June 30 (2003) revolutions, is on a path to establish a modern democratic state based on justice, freedom, equality and a renunciation of corruption," he said in a statement late Sunday.

"Terrorists" in Tunisia have abducted and decapitated an off-duty policeman, media reports on Monday cited the interior ministry as saying.

The officer and his brother were in a car in the Kef area of the northwest when gunmen seeking to rob them immobilized the vehicle.

A Palestinian woman stabbed an Israeli civilian in a Jewish settlement bloc in the southern West Bank on Monday and was then shot and wounded by the Israeli army, the military said.

The attack was the first by a Palestinian woman in a wave of unrest in Israel and the occupied territories, and comes as tensions run high particularly in Jerusalem and nearby areas of the West Bank.

Islamic State group jihadists battling for control of the Syrian town of Kobane suffered some of their heaviest losses yet in 24 hours of clashes and U.S.-led air strikes, monitors said Sunday.

At least 50 jihadists were killed in the embattled border town in suicide bombings, clashes with Kobane's Kurdish defenders and air strikes, the Syrian Observatory for Human Rights said.

A Qatari appeals court on Sunday acquitted a U.S. couple of parental neglect over their adopted daughter's death, but the couple said they were later prevented from leaving the country.

Matthew and Grace Huang were arrested in January 2013 after the death of eight-year-old Gloria, who had been adopted from an orphanage in Ghana.

Canada said Sunday it was "aware of reports" that one of its nationals may have been kidnapped in Syria, amid suggestions it could have been a woman fighting alongside Kurdish forces in Kobane.

The U.S.-based monitoring group SITE said Islamic State jihadists claimed a woman described as a "female Zionist soldier" had been captured in the embattled Syrian border town.

Turkey's main pro-Kurdish party on Sunday pressed Prime Minister Ahmet Davutoglu over whether a probe had been launched into claims that an attack by jihadists on a border post had been launched from Turkish soil.

The Turkish army on Saturday confirmed Islamic State (IS) jihadists had staged an attack at the Mursitpinar border post close to the Syrian town of Kobane but strenuously denied that the car involved in the strike had come from its territory.

The Israeli government on Sunday approved new draft legislation aimed at curbing illegal immigration after judges quashed an earlier law as repressive, the interior ministry said.

The bill, which was unanimously approved by the cabinet, must now pass three votes in the parliament, or Knesset, before passing into law.

Iraqi Prime Minister Haidar al-Abadi on Sunday announced that an investigation had uncovered the existence of 50,000 "ghost soldiers", and promised a widening crackdown on corruption.

"The prime minister revealed the existence of 50,000 fictitious names" in the military, said a statement from Abadi's office issued after a session of parliament.

Al-Qaida militants have killed three soldiers with a rocket in Yemen's eastern province of Hadramawt, a security official said on Sunday.

Al-Qaida in the Arabian Peninsula (AQAP) confirmed on Twitter it "targeted an army vehicle... heading from Shibam to Seyun in Hadramawt, destroying it and killing the three soldiers on board".