Five vans have been damaged or broken into at Dunsilly Roundabout 'Park and Ride' near Antrim.
Police say a number of valuable items have been taken.
The incident is believed to have happened yesterday daytime.
Anyone with information is asked to contact the detectives at Antrim PSNI station on 101.
Murder investigation launched following death of man in Coleraine
Man arrested over threats to elected representatives
Teachers’ unions welcome pay increase while pledging to tackle workload
Minister to explore if he can enforce use of Ulster Banner at Commonwealth Games