A cannabis farm with 200 plants worth about £168,000 has been found by police.
Cleveland Police said officers discovered the farm on Lancaster Road in Hartlepool on Thursday following a report of suspicious activity.
A force spokeswoman said two men aged 34 and 53 were arrested on suspicion of production of a class B drug.
Det Con Mark Coverdale encouraged members of the public with information about drugs to contact police.
He said: "We will act upon it."