Detectives are hunting thieves who stole a van with 17 computers inside.
The white Ford Transit registration BJ60 UDT was taken from Charles Street.
Inside were 17 Dell Opitplex computers.
Detectives are asking anyone who has been offered one of these computers for sale to get in touch.
They also want to hear from anyone who has information about the theft, which happened between 7pm and 11.30pm on Wednesday.
Anyone who can help should call Calderdale CID on 01422 337086.
Information can also be passed on anonymously via CrimeStoppers on 0800 555111.