A Union Pacific train has derailed in the Southern California desert town of Mecca, setting two tanker cars ablaze.

The accident happened around 9:30 p.m. Monday.

Fire officials say about 60 residents in nearby homes have been evacuated, and a cloud of acid fumes is lingering over the crash site. One tanker car was carrying phosphoric acid, and another was carrying hydrochloric acid.

Riverside County Fire Capt. Julie Hutchinson said a one-mile radius has been set up around the accident site and no one is being let inside because of the potentially hazardous fumes.