two men have been charged by police following the raids on traveller sites in Doncaster earlier this week.
A 31-year-old man has been charged with possession of a Class A drugs and the production of cannabis, and a 19-year-old man has been charged with possession of cannabis.
They were among seven people detained on Tuesday morning when officers and police dogs executed search warrants at premises in Hall Villa Lane, Toll Bar, and Stockbridge Lane, Bentley.
South Yorkshire Police said the officers seized about £20,000 worth of cannabis plants and hydroponics equipment.
The other people have been released on police bail pending further enquiries, said a police spokesman.