India, Oct. 12 -- Saudi Arabia is reportedly running low on interceptor missiles needed to defend against further Houthi strikes, as attacks by Iran-backed militants in neighbouring Yemen threaten the kingdom's security.

The kingdom initially appeared relatively well positioned after the war with Iran began, with a pipeline allowing it to export oil while bypassing the blocked Strait of Hormuz. However, escalating Houthi attacks have exposed vulnerabilities in Saudi Arabia's air defences and critical infrastructure.

The growing threat follows a strike on Riyadh's King Khalid International Airport on October 10 that killed 13 people and injured hundreds. The attacks have turned parts of the Saudi capital, located more than 500 miles from...