Multiple police cruisers, as well as fire trucks and ambulances, were seen parked outside the Nordstrom store at the popular shopping complex in Canoga Park.
At least a dozen shoppers appeared to be standing outside.
The attack happened around 6:45 p.m. when a group of five suspects committed a smash-and-grab at the Nordstrom store and ran out with items that included about 7-8 expensive purses. At least one of the suspects was described as wearing an orange wig.
They assaulted and used bear spray on a security guard during the robbery, police say. The security guard was treated by paramedics and is expected to be OK.
The suspects fled in a newer model gray Ford Mustang.