Police are appealing for anybody who saw a vehicle towing a black trailer, registration H636C, with a $5000 spa pool on the back, to get in touch as it may have been stolen from a yard in Union East St.

Northland police spokeswoman Sarah Kennett said the yard's gate chain was cut between 7pm on Wednesday and 8am yesterday.

Ms Kennett said anyone with information can ring Whangarei police on (09) 470 2500 or can call Crimestoppers anonymously on 0800 555 111.