UPDATE (10:05 p.m.): The Five Cities Fire Department says no one was injured after a fire broke out in an RV shortly after 9 p.m. Saturday night.
Fire officials say the RV was parked in a lot adjacent to the Mullahey Ford dealership.
FCFA is unsure whether the RV was occupied prior to the blaze.
The cause of the fire is unknown. Firefighters say these type of vehicles burn hot and fast which makes it difficult for them to determine a cause.
ORIGINAL STORY: Firefighters are responding to a motor home fire in Arroyo Grande.
CAL FIRE SLO says the fire broke out on the 300 block of Traffic Way around 9 p.m.
Viewer video sent to KSBY shows a motor home fully engulfed in flames.
Five Cities Fire Authority is also responding to the fire.
This is a developing story, check back later for details.