Qatar's emir, Tamim bin Hamad Al Thani, has received an invitation from Saudi Arabia's King Salman to attend a summit of the Gulf Cooperation Council on Dec. 9, Qatar News Agency said on Tuesday.

A new anti-corruption body, formed by King Salman and headed by his son, Crown Prince Mohammed bin Salman, ordered the arrests, in a move reportedly designed to consolidate the crown prince's power.

Saudi King Salman on Tuesday ordered that women be allowed to drive cars, state media said, ending the conservative Islamic kingdom's status as the only country where that is forbidden.The royal decree ordered the formation of a ministerial body to give advice within 30...