SOUTH HAVEN, MI -- Three Southwest Michigan residents were arrested Wednesday after a marijuana dispensary raid Wednesday in South Haven.

The raid came after a lengthy investigation by the Southwest Enforcement Team into the illegal sale of marijuana at the U-Med Center at the Phoenix Square plaza, according to a news release from the Michigan State Police.

The investigation also led officers to serve search warrants at the U-Med facility near Dowagiac. Employee residences were also searched in Watervliet, Millburg, Hartford and Geneva Township.

Patrick A. Withrow, 50, of Millburg, was charged with two counts of delivery/manufacturing marijuana as a habitual offender. Darell L. Howley, 54, of Hartford Township, and 33-year-old Michael J. Donato, of Watervliet, were charged with one count of delivery/manufacturing marijuana. All three suspects have been arraigned in Van Buren County District Court on those charges.

During the searches, officers seized several pounds of marijuana and more than 200 marijuana plants. Detectives also seized 14 guns, cash and a vehicle.

Police say they expect more arrests to be made in connection with this case in the coming days.