A Greater Portland task force of police and prosecutors fighting human sex trafficking in southern Maine arrested four people as part of an investigation into an alleged prostitution operation.

Police in Portland and Westbrook on Friday charged three men with engaging a prostitute. A fourth suspect in the case was not charged with any prostitution crimes but with eluding police and reckless conduct.

Loyall F. Sewall, 49, of Westbrook was arrested on Larrabee Road in Westbrook; James Conrad Begin, 35, of Lewiston was arrested at 1230 Congress St., Portland; and Bao T. Loc, 20, of South Portland was arrested at the Super 8 motel in Westbrook. All were charged with engaging a prostitute.

Police say that when officers participating in the investigation approached Chandler G. Marsh, 24, of Hyde Park, Mass., in a parking lot on Larrabee Road, he sped off in his car.

He was heading out William Clark Drive when an officer who was in the area put down a spike mat, which deflated the tires on Marsh’s car, police said.

Partcipating in the Greater Portland Coalition Against Sex Trafficking and Exploitation are Portland police, South Portland police, Westbrook police, Scarborough police, the Cumberland County Sheriff’s Office, the Cumberland County District Attorney’s Office, the Maine Drug Enforcement Agency, Maine Pretrial Services, the FBI and the Department of Homeland Security.

David Hench can be contacted at 791-6327 or at:[email protected]Twitter: @Mainehenchman