Police confirmed there was no shooting at The Shops at Montebello.
[Ads /]
Twitter video showed at least four suspects smashing the glass at a kiosk inside the mall, grabbing several items and running out the door.
The sounds of the shattering glass loudly echoed through the mall and may have been mistaken for gunfire.
[Ads /]
Several people posted on Twitter that they believed there was an active shooter.
The mall was expected to remain closed Monday night.
Police said anyone who evacuated the mall in a panic can use the Kaiser Hospital parking lot as a reunification point to meet up with others in their group.