SEVERAL locker bays at a secondary college in Endeavour Hills were broken into on two different occasions.
Bolt cutters or a similar tool were used to break into the bays and numerous lockers were forced open by the group of two males and two females.
Various items were stolen from the school including laptops, cash and calculators.
The break-ins occurred on Tuesday 4 August and Monday 27 July and police have released images of the four who they believe can assist with their investigation.
Anyone with information is urged to contact the Casey Crime Investigation Unit on 9705 3114 or Crime Stoppers on 1800 333 000.