The Libyan coastguard has rescued more than 900 African and Asian migrants attempting to reach Europe, a navy spokesman said on Saturday.

Saudi Arabia's King Salman has issued a royal decree that restructures the country's system for prosecutions, essentially stripping the crown prince of longstanding powers overseeing criminal investigations.

The king's decree issued Saturday renames the Bureau of Investigation and Prosecution as the office of Public Prosecution and orders that a newly appointed public prosecutor report directly to the monarch.

Palestinian militant factions on Saturday dismissed a claim by the Islamic State group that it was behind the fatal stabbing of an Israeli policewoman in Jerusalem saying the assailants came from their ranks. 

The Israeli security services also raised doubts about the veracity of the IS claim -- its first for an attack in Jerusalem -- which came with the jihadists facing defeat in their Iraq and Syria bastions.

US Secretary of State Rex Tillerson on Friday cancelled his attendance at next week's Organization of American States meeting in Mexico, opting to stay in Washington to focus on the diplomatic crisis in the Middle East.

The Islamic State group on Saturday claimed responsibility for the fatal stabbing of an Israeli policewoman outside Jerusalem's Old City. 

An Israeli policewoman was stabbed and critically wounded in an attack outside Jerusalem's Old City on Friday, Israeli police said, with security forces shooting dead three suspected Palestinian assailants.

Turkey's foreign minister visited Saudi Arabia on Friday for talks aimed at resolving the Gulf diplomatic crisis, as Qatar accused its neighbors of imposing a devastating "siege" on the emirate.

Saudi Arabia, the United Arab Emirates, Bahrain, Egypt and others severed diplomatic and economic ties with Qatar almost two weeks ago, accusing Doha of supporting extremist groups, which Doha denies.

A Tunisian shepherdess was killed Friday when she stepped on a landmine in a military zone in the country's west, where the army is fighting jihadists, a security official said.

The U.S. and Qatari navies on Friday ended a three-day joint exercise involving nine vessels that took place at a time of high diplomatic tension between Doha and Gulf neighbors.

A Qatari official accused Saudi Arabia and its allies Friday of imposing a "siege" on his country with sanctions he said were having a more devastating effect than the Berlin Wall.