Middle East crisis live: Drone strike in Syria reported to have killed six members of US-backed Kurdish-led group

US secretary of state Antony Blinken is set to arrive in Saudi Arabia on his fifth visit to the region since October in the coming hours.

His visit comes after the US carried out retaliatory strikes against Iranian-linked targets in Iraq and Syria, and on Houthi rebel sites in Yemen, in the latest escalation of the conflict that is spreading across the Middle East.

The trip also comes as the Biden administration gradually shows…