Saudi Arabia extended an airport closure after a Houthi strike killed 12 people and injured 300. While the Iran-backed Houthis stopped short of claiming the strike, they threatened new attacks on the kingdom's airports, except for the holy cities of Mecca and Medina, warning passengers not to travel. Key points and original sources are listed below.

• Saudi Arabia extended an airport closure after a Houthi strike killed 12 people and injured 300.S1

• While the Iran-backed Houthis stopped short of claiming the strike, they threatened new attacks on the kingdom's airports, except for the holy cities of Mecca and Medina, warning passengers not to travel.S2

• Twelve people have been killed and 309 others injured in an attack on King Khalid International Airport in Riyadh, Saudi Arabia, the third reported attack on the facility in a week, according to the country’s General Authority of Civil Aviation. The Saudi Gaze...S3