MANCHESTER — Police said they seized nearly 48 grams of heroin and 3½ grams of cocaine during a drug bust Tuesday that also resulted in the arrests of three city residents.

The bust was the result of an investigation by the Street Crime Unit and Special Investigations Unit into alleged illegal drug activity. It was carried out Tuesday when the SWAT team stopped a car at 2 Pheasant Lane and arrested the two people inside, police said. Victoria Bean, 40, is charged with possession of heroin with intent to distribute. Nathan Lavallee, 27, is charged with sale of heroin and held on a probation violation.

The SWAT team then arrested Stephanie Kelly, 23, at her city home on three counts of sale of a heroin and cocaine.

The SWAT team executed a search warrant at Lavallee’s 430 Lake Ave. home about 4:30 p.m as part of the investigation, said Lt. Shawn Fournier, SWAT team commander.