A fire broke out near King Khalid International Airport in Riyadh, the capital of Saudi Arabia.
Eyewitnesses who said smoke was rising around the airport said the fire had started for a reason that had not yet been determined.
Saudi authorities have not commented on the incident so far.
The fire occurred in Riyadh at a time when Yemen's Ansarullah movement had previously accused Saudi Arabia of sending drones to Sana'a and threatened to retaliate.
Following this development, the Saudi government had also warned the public in some areas in the south of the country about possible attacks.