The thieves are targeting retail outlets and stealing California Lottery "scratch off" tickets.
The culprits have hit a number of locations in L.A. and Ventura counties, including Simi Valley, Newbury Park, San Fernando Valley, Agoura Hills, and Acton.
The face value of the stolen tickets is $10 thousand dollars.
Police have surveillance photos of two suspects.
Anyone with information is asked to call the Simi Valley Police Department Detective Unit at (805) 583-6969, or the California State Lottery Law Enforcement Division at (818) 901-5102.