GRAND RAPIDS, Mich. (WOOD) — Five semi-trucks were destroyed and three more were damaged in a fire early Sunday morning, firefighters said.

Just before 5 a.m., the Grand Rapids Fire Department was called to Ionia Avenue between Grant and Graham streets for several semi-trucks that were on fire.

While no one was injured, firefighters estimate the fire caused over $1 million in damages. Five trucks were lost and three had “significant body damage,” GRFD said.

GRFD said the fire is believed to have been caused by an electrical problem in one of the trucks. It was deemed accidental.

Twenty-eight firefighters, two battalion chiefs and the fire investigator responded to the scene.