Jamal Khashoggi's final words were "I can't breathe," CNN said Sunday, citing a source who has read the transcript of an audio tape of the final moments before the journalist's murder.

Syrian state media said Sunday that air defences had opened fire near Damascus airport, before withdrawing the report after what appeared to be a false alarm.

The United Nations said Sunday it began delivering aid to hundreds of thousands of Syrians through the Jaber-Nassib border crossing with Jordan, which reopened two months ago. 

Yemen's Huthi rebels are open to more talks with the rival government if progress is made this week at U.N.-brokered negotiations in Sweden, a spokesman said on Sunday.

The Gulf Cooperation Council (GCC), which holds its annual summit Sunday in Riyadh amid a deep crisis, groups Sunni Muslim-led monarchies sitting on a third of the world's oil reserves.

Qatar said its emir will skip a summit Sunday of Arab Gulf leaders in Saudi Arabia, which has spearheaded a boycott of the small but energy-flush neighbour and sparked a major regional diplomatic row.

Saudi Arabia hosts a summit of Arab Gulf leaders Sunday as crises brew over a bitter diplomatic dispute with Qatar, the war in Yemen and the murder of Saudi journalist Jamal Khashoggi.

The United States and Britain accused Russia on Friday of fabricating a story about chemical weapons use by Syrian rebels and warned Moscow against undermining a shaky truce.

A year after it was routed from Iraq in a devastating war that left entire neighborhoods and towns in ruins, the Islamic State group is fighting to hang on to its last enclave in eastern Syria, engaging in deadly battles with U.S.-backed forces.

Cornered in the desert near the Iraqi border with nowhere to run, the militants are putting up a fierce fight, inflicting hundreds of casualties among their opponents and releasing a stream of beheading videos reminiscent of the extremist group's terrifying propaganda at the height of its power.

Turkey on Friday asked the U.S. to scrap observation posts in northern Syria aimed at helping prevent clashes between Turkish forces and a Kurdish militia backed by Washington.