An anonymous tip off to Arnhem police about an illegal cannabis farm on the top floor of a house probably came from a burglar, police have said.

On New Year’s day police were called out to a reported burglary at the Zijpendaalseweg in Arnhem where they found the door to the house open and the rooms in disarray.

A further investigation revealed a top floor full of cannabis plants and a ‘considerable amount of drugs’.

Police say they are working on the assumption that the burglar himself reported the marijuana plantation. The owner of the house has not yet been located.