Burnt food prompted a fire alarm that cleared San Diego Airport's Terminal 2 Tuesday, officials said.
San Diego Fire Rescue crews were called to Lindbergh Field for a fire alarm around 10:20 a.m. Tuesday.
One traveler told NBC 7 that lights were flashing inside the terminal and an announcement was made regarding the fire alarm.
No one inside the terminal panicked but many appeared to be confused about the incident.
After 10 minutes, authorities told travelers to return to the terminal.
An airline employee told NBC 7 the cause of the fire alarm was burnt popcorn. San Diego Fire Rescue officials described the cause as burned food.
No one was injured.