After a year-long investigation of activities at a trailer on Parkers Creek Road, the Calvert Investigative Team's Drug Enforcement Unit seized about 2.8 kilograms of cocaine, the largest cocaine seizure in the county's history, according to the investigative team.

The Drug Enforcement Unit, made up of officers from the Calvert County Sheriff's Office and the Maryland State Police, with assistance from the St. Mary's County Sheriff's Office, executed a warrant at the trailer, at the end of Parkers Creek Road north of Port Republic, on Friday.

Over the past year, the Drug Enforcement Unit had been targeting people suspected of distributing large quantities of crack cocaine from several residences on Parkers Creek Road, according to the investigative team.

When officers executed the warrant, several suspects fled on foot, officials said. Members of the special operations teams from the Calvert and St. Mary's sheriff's offices caught seven suspects.

A search of the area turned up about 2.8 kilograms of cocaine with an estimated street value of $290,360. Also seized were two shotguns, two vehicles and more than $4,000 in cash, according to the investigative team.

Three other suspects were arrested when they drove to the trailer after the raid. A search of their vehicles produced about a quarter-ounce of suspected crack cocaine.

Arrested and charged with various drug-related offenses, according to the investigative team, were Paul David Parker, 22, Terrance Lamont Jefferson, 22, Arthur Lee Harrod, 53, Antoine Lincoln Jacks, 31, Willis Franklin Commodore, 30, David Joseph Harrod, 40, Vashon Valente Bishop, 31, Francis Mathew Wallace Jr., 22, Melvin Lee Stewart, 40, and Gary Sylvester Mason, 25.