Trump says Iran war to end after US midterm elections, threatens to attack Pickaxe Mountain

Tensions in the region were high, with Saudi civil defence authorities on Thursday issuing emergency alerts in the southwest city of Khamis Mushait for the fourth time in 24 hours, as clashes flared with Yemen's Iran-backed Houthis.

Fighting between Saudi Arabia and the Houthis in Yemen has also escalated in the past few days, a second theatre of war that threatens global energy supplies from the Middle East.

At least 73 people were wounded in four southern Saudi cities, including Khamis Mushait, in recent Houthi attacks on the world's largest oil exporter, the Saudi-led coalition said on Tuesday.

The militant group said it attacked an air base in the southwestern city of Khamis Mushait and oil infrastructure in nearby cities in one of the biggest attacks on Saudi Arabia since the start of the U.S.-Israeli war on Iran in February.