Five people from Portland and Mexico, Maine have been arrested in connection with the distribution of heroin in the state, authorities said.

Three Mexico residents, Bricknell Dorelas, 34, Chelsie Belskis, 30, and Nicole Belskis, 32, each face charges of unlawful trafficking in heroin and conspiracy to commit unlawful trafficking in heroin, the Maine Drug Enforcement Agency said in a new release Monday.

Joseph Kabamba, 20, and Bilal Mohammed, 24, both of Portland, are facing the same charges.

Nicole Belskis was also charged with violation of conditions of release.

During the morning hours of September 23, MDEA agents executed search three warrants at 105, 107 & 109 Chase Avenue in Mexico.

The search warrants came as a result of a two-month investigation of three males operating a large scale crack cocaine and heroin trafficking ring in the River Valley area of Oxford County, the release said.

Drug agents say the investigation revealed that Dorelas, Kabamba and Mohammed would use local heroin users’ residences and have the users sell heroin and cocaine base for them in exchange for free drugs.

According to the release, Chelsie and Nicole Belskis conducted drugs sales of heroin and cocaine provided by the three men.

Agents say they seized approximately 7 grams (70 dosage units) of suspected heroin and $8,000 in suspected drug proceeds.

All five suspects were transported to the Oxford County Jail. Bail was set at $150,000 cash for Dorelas, Kabamba and Mohammed. Chelsie Belskis’ bail was set at $15,000. Nicole Belskis was not eligible for bail pending arraignment by a judge due to the new bail violation charge.

The MDEA is continuing the investigation and additional arrests are expected.