DUBAI/RIYADH, Oct 11 (Reuters) - Yemen’s Houthis warned airlines, travellers and airport workers on Sunday to stay away ‌from Saudi airports, a day after an attack on Riyadh’s international airport killed 12 people and wounded more than 300 others.

It was the deadliest such attack in the kingdom in more than a decade and comes amid an escalation of fighting between the Iran-backed Houthis and Saudi-backed Yemeni government forces.

“We renew our warning to all airlines, experts, employees, workers and ​travellers against using Saudi airports and airspace, as they are vulnerable to attack and have become a theatre of operations for our ​forces, with the exception of the airports in (the holy cities of) Mecca and Medina,” the Houthis said in a ⁠post on X.