Sixteen people – including a man and woman already in state prison, and a Buffalo drug suspect being held on other charges in the Erie County Holding Center – were arrested Thursday morning in what police described as a roundup of drug trafficking suspects in the Jamestown area.

Jamestown Police Detective Lt. Paul Abbott told The Buffalo News the warrant sweep, “aimed at narcotics trafficking and drug activity in the city, was a culmination of a number of investigations” conducted by his department’s Drug Enforcement Unit. Three of the suspects already were in custody, and 13 were arrested in Jamestown. He did not say what drugs they are accused of selling, but the department has been focused on cocaine sales.

According to police, the following Jamestown residents were charged with felony third-degree criminal sale of a controlled substance: Matthew C. Hillman, 27, of Hallack Street; Michael A. Taylor, 42, of West Eighth Street; Dennison O. Lawrence Sr., 64, of East Fifth Street; Silk E. Spencer, 25, of Bush Street; Edward L. Beish, 23, of West 12th Street; Carlos L. Rivera, 46, of Pendergast Avenue; Juan A. Perez, 38, of East Second Street; Joshua D. Pelfrey, 31,of Lafayette Street; and Jason S. French, 38, of Willard Street.

Criminal detainers on the same felony charge were lodged against Stephanie A. Czarniak, 22, of Jamestown, now in the Albion Correctional Facility for women; Devon R. Cottom, 29, of Jamestown, now in the Elmira Correctional Facility; and DeMario Watkins, 31, of Seneca Street in Buffalo, who is in the Erie County Holding Center.

Also taken into custody Thursday were Adifah C. Wilkes, 29, of Lakeview Avenue, Jamestown, charged with third-degree drug sales; a 16-year-old Jamestown youth, charged with criminal sale of marijuana; and Kaitlyn M. George, 18, of Gerry-Levant Road, Falconer, on a drug probation violation charge.

Shane M. Messere, 35, of Eagle Street, was charged with misdemeanor possession of marijuana.

Abbott said investigators and officers of the Jamestown police force carried out the arrests with help from state troopers and agents of the federal Department of Homeland Security and the U.S. Marshal’s Service, as well as officers with the Chautauqua County Probation Department.

More arrests are expected.