A cannabis factory was discovered by officers patrolling a Sheffield street.
The police officers were on Southey Green Road, Southey Green, when they discovered 12 plants and drug cultivation equipment growing in a house.
Officers raided a property on Holgate Crescent, Parson Cross, looking for drugs earlier this week.
They did not find any drugs but during a search found a cannabis cultivation set up.
Officers also found evidence that plants had been grown there recently and cropped.
An investigation is now under way.
Anyone with information should call South Yorkshire Police on 101.
Crimestoppers can be contacted anonymously on 0800 555 111.