The fire was reported just after 8 p.m. in a furniture store at A and 9th streets.
The store was well-involved in the blaze, with flames seen shooting up through the roof.
Fire knock down, crews standing by for investigation! pic.twitter.com/INVXWZHm0z— Oxnard Fire Dept. (@OxnardFire) December 5, 2016
Oxnard and Ventura County firefighters knocked down the fire within about an hour with no reports of injuries.
Three other units at the strip mall were also damaged.
Authorities are still investigating the cause.