A fire that damaged a Daly City elementary school on Sunday night appears to be a case of arson, a fire spokesman said this morning.
Firefighters responded to Skyline Elementary School at 55 Christen Ave. at about 10:30 p.m. after a fire alarm in a portable classroom went off, North County Fire Authority spokesman Matt Lucett said.
Fire investigators found three spots around the exterior of the building where someone apparently tried to light the building on fire, Lucett said.
At one of the ignition points, flames grew hot enough to penetrate the classroom wall, which resulted in smoke and fire damage to part of building, Lucett said.
Firefighters were able to contain the blaze quickly, and the scene was cleared by midnight.
No one was injured, and the damage to the building was still being assessed this morning.
An arson investigation is being conducted by Daly City police, Lucett said.