Britain is deploying Royal Air Force Typhoon fighter jets to conduct defensive air missions over Saudi Arabia following a formal request from the Saudi government.

A Houthi missile strike on Riyadh's King Khalid International Airport has killed 12 people and shut down operations, triggering widespread Middle East flight suspensions.

Yemeni government forces backed by a coalition air campaign launched an offensive to retake territory along the Red Sea coast, securing key positions near the Bab el-Mandeb Strait.

Saudi Arabia faced a direct threat as air-raid sirens wailed across Riyadh and a fuel depot caught fire near King Khalid International Airport.

Saudi-led coalition forces intercepted and destroyed a drone south of Mecca. Houthi officials rejected allegations of targeting the holy city.

A fire sparked by a reported Houthi drone attack at the Saudi Aramco refinery in Jazan was extinguished on Sunday with no injuries reported.

A wave of missile and drone strikes targeting military camps in central Yemen has left dozens of government troops dead in a sharp escalation of the conflict.

Houthi militants claimed strikes against the Saudi-flagged tankers Encelia and Layla following a maritime ban, leading to a rise in Brent crude oil prices.

President Donald Trump has vowed to continue military operations against Iran, estimating the nation faces decades of reconstruction as regional tensions spike.