COLUMBIA, S.C. - Investigators say a 70-year-old man was growing marijuana in a chicken coop in the backyard of his Columbia home.

Police said in a news release that Thomas McMillan was using high intensity lights to help the plants grow to up to 10 feet. Authorities say the four plants were worth about $30,000.

Police say they came to McMillan's home after getting an anonymous tip about the marijuana.

McMillan has been charged with manufacturing marijuana and taken to the Richland County jail. It wasn't known if he had a lawyer.