Detectives are searching for a large amount of designer clothing stolen from a lorry parked in Holmfield, Halifax.
Thieves broke into the lorry at Sidhil Business Park, off Holdsworth Road, sometime between lunchtime on Saturday and 2.30am on Sunday.
They used a vehicle - thought to be a white Transit van - to make several trips to and from the lorry over the space of about an hour.
Officers are keen to hear from anyone who saw a van in the area or anyone acting suspiciously.
They also want to hear from anyone who has been offered designer clothes for sale.
Anyone who can help should call Calderdale CID on 01422 337086.
Information can also be passed on via CrimeStoppers on 0800 555111.