Four people have been arrested following a drug investigation that led to the discovery of an alleged laboratory for manufacturing methamphetamine.

Dover Police Department spokesman Master Cpl. Mark Hoffman said that on Friday, Dec. 9, officers went to a home in the 2000 block of White Oak Road to serve a search warrant. They were accompanied by members of the Dover office of the Drug Enforcement Administration, DNREC’s emergency response unit and the Little Creek fire company.

Those arrested include David and Vivian Loder, both 36, where were charged with operation of a clandestine lab, second-degree conspiracy, possession of drug paraphernalia and maintaining a drug property

Clark Rholetter, 50, was charged with operation of a clandestine lab, second-degree conspiracy and possession of drug paraphernalia; Gordon Clark, 25, was charged with violating probation and possession of drug paraphernalia.

Bond information was not provided.