Six school buses went up in flames overnight at a Brooklyn parking lot, officials said.

Some of the buses were parked in close proximity to one another when the blaze in the lot near the corner of Strickland and Mill avenues started around 3 a.m. Thursday.

The flames were brought under control a short time later and no one was injured, officials said.

Police and fire officials said it’s unclear if the blaze was suspicious. Both agencies are investigating.