LAKEWOOD - Investigators are trying to determine what sparked a fire overnight at a gas station.

Lakewood police say it happened at the Delta gas station on Madison Avenue just before 1:30 a.m. They say officers arrived to discover the building wholly engulfed by flames.

Emergency crews shut down Route 9 in both directions as they battled the fire.

No injuries were reported, but residents nearby were evacuated as a precaution.