The Federal Aviation Administration (FAA) has urged U.S. airlines to take precautions when flying in or near Saudi Arabia due to recent deadly attacks claimed by Yemen's Iran-backed Houthis, which have resulted in the closure of the airport in Riyadh.

As of Monday, King Khalid International Airport in Riyadh remains shut following a series of strikes that began last week. The situation escalated on Saturday when a projectile hit a passenger terminal, leading to at least 12 fatalities and over 300 injuries.

In response to the attacks, airlines have suspended flights to the airport, with some halting operations for the remainder of the week.

The U.S., Australia, and other nations have also advised their citizens against traveling to the area.

On Sunday, the FAA issued a warning stating that pilots should 'exercise caution' in or around Saudi Arabia due to safety-of-flight risks linked to ongoing military activities and navigation system issues. The agency noted that these threats could pose risks to aircraft at all altitudes, and the warning is effective until December 10.

While most U.S. airlines do not operate flights to Saudi Arabia, the number of flights and passengers in the country has increased in recent years. The route from Riyadh to Jeddah was reported as the fifth-busiest globally last year, according to aviation-data firm OAG.

Delta Air Lines had planned to commence its first nonstop flight from Atlanta to Riyadh on October 23, but the airline announced on Monday that it would postpone this service until March.