The derailment happened around 11:20 p.m. on Wednesday east of Williams, which is 33 miles (53 kilometers) west of Flagstaff, according to Coconino County Emergency Management authorities.

They said that a variety of new vehicles, vans, and trucks were being transported by BNSF train cars.

Images of the derailment scene revealed numerous cars and freight cars with significant damage, white vans jutting out of other rail cars with damage, and an upside-down car crushed beneath a freight car.

Cleanup, according to County Emergency Management authorities, started early on Thursday.

The derailment was not immediately reported by Texas-based BNSF Railway.

Concerns regarding rail safety in the United States have grown as a result of a recent spate of train derailments around the nation.