The LAPD says 17 people ransacked the store located in the 9800 block of South Alameda Street just before 6 p.m.
The people involved were described as four females and 13 males, believed to be 15 to 20 years old. Investigators say they arrived and then fled the scene in five vehicles.
Footage posted on the Citizen app shows people grabbing armloads of shirts and fleeing with bags full of merchandise.
Police are now asking for the public's help in identifying the suspects.