RALEIGH, WAKE COUNTY -

Investigators are trying to figure out if a fire that burned three school buses at a Raleigh high school was an accident or was intentionally set.

The fire was reported around 10 p.m. Saturday at Southeast Raleigh High School.

Fire officials say all three buses were fully engulfed in flames when they arrived.

Firefighters and police are trying to figure out the cause of the blaze.