L.A. Sheriff's semitrailer catches on fire in Marina Del Rey

MARINA DEL REY, Calif. (FOX 11) - Fire investigators are working to determine what caused a Los Angeles Sheriff's semitrailer to catch on fire Friday evening.

L.A. County firefighters were called out to the 13900 block of Fiji Way in Marina Del Rey after flames began shooting from a semitrailer that the Sheriff's Office says is a "mobile shooting range."

A small round of ammunition was inside the trailer at the time of the fire.

No injuries were reported. Firefighters remain on scene battling the blaze.

The cause of the fire is under investigation.