SAN FRANCISCO, CA – (CBS) – We are following Breaking news of a fire that has broken out the San Francisco International Airport.

Authorities say the fire broke out at a maintenance facility at San Francisco International Airport on Wednesday morning.

WATCH: Fire Breaks out at San Francisco International Airport Maintenance Facility

According to San Francisco fire officials, the fire started burning at the United Airlines facility located north of the terminals shortly after 7:30 a.m. A second alarm has been called and the facility has been evacuated.

No injuries were immediately reported. This is an ongoing investigation.