CRANSTON, R.I. (WPRI) — Firefighters responded to a report of a trailer fire in Cranston Wednesday morning.

The fire broke out around 6:30 a.m. on Mill Street.

Watch: Crews on scene at the fire in Cranston (Story continues below.)

Fire crews told 12 News there was a concern that there were hazardous materials in the trailer.

The extent of the damage is unknown at this time, and no word on the cause of the fire.

This is a developing story. Check back for updates.