SKOWHEGAN — A heroin bust Tuesday morning in Skowhegan was the result of an investigation over several months, and more arrests are likely, police said Wednesday.

Investigators with the Maine Drug Enforcement Agency’s South Central Task Force arrested Kirsten Libby, 26, of Skowhegan, and Michael D. Figueroa, 40, of Methuen, Mass., after stopping a car Libby was driving Tuesday morning on U.S. Route 201, according to an MDEA press release. The press release described Figueroa as Libby’s boyfriend.

Libby was described in the release as a leader of a local drug distribution ring, but the arrests and seizure of about 40 grams of heroin does not mean Skowhegan is more of a drug hotbed than other central Maine city, the town’s police chief said.

“As Somerset County goes, Skowhegan is certainly a hub of activity — all sorts of activity,” said Police Chief Ted Blais. “Is it a hub of drug activity? Maybe. But is it any different from Augusta or Waterville? No.”

The investigation is continuing and more arrests are expected, police said.

Drug enforcement agents have been working with the Skowhegan Police Department for several months on the investigation into the importation and distribution of heroin in town.

MDEA agents stopped Libby after determining that she was on a return trip from Massachusetts with drugs to sell in the area, the release said.

Agents armed with a search warrant searched Libby, the rental car she was driving and Figueroa, who was a passenger, uncovering approximately 40 grams of heroin with a street value of approximately $5,500, according to the release.

Libby is charged with class A aggravated trafficking of scheduled drugs — heroin. The charge was elevated to a class A offense based on the weight of the drugs seized. Bail was set at $50,000 cash. She is being held in the Somerset County Jail in East Madison.

Figueroa is also charged with class A aggravated heroin trafficking. Bail was set at $100,000 for him. Both were still in custody as of late Wednesday afternoon.

Blais said Skowhegan, as the county seat and center for shopping and other services, attracts people to town, but no more than any other large retail center in the area.

“I think we certainly have our share of drugs here for sure, and we try working on it every day,” Blais said. “But is there some sort of new wave of drug activity? I would say no.”

Maine State Police and the Somerset County Sheriff’s Office also assisted in the investigation.

Doug Harlow — 612-2367

dharlow@centralmaine.com

Twitter: @Doug_Harlow