More than 300 cannabis plants and drug-growing equipment have been seized in a raid at a house in Harrogate, police have said.
North Yorkshire Police said the cannabis farm on Harlow Terrace in the town centre had now been dismantled.
A 25-year-old man has been arrested and released on bail pending inquiries, the force said.
Anyone with more information about suspicious activity in the area should contact police on 101, it added.
