Three people were arrested following the discovery of a meth lab inside a home in Sherman, police said.

Gloria Cahill, 50, and Eliza Berberian, 29, both of Sherman, were charged with aggravated operation of a meth lab, according to Stephen McCausland, spokesman for the Maine Department of Public Safety. The charges were aggravated because both suspects had prior felony drug trafficking convictions.

Shawn Michaud, 31, also of Sherman, was charged with unlawful operation of a meth lab.

As part of an ongoing investigation into the suspected manufacturing of methamphetamine, the Maine Drug Enforcement Agency, along with support from the Aroostook County Sheriff’s Office and U.S. Border Patrol agents, searched a mobile home on Silver Ridge Road in Sherman Tuesday.

Drug agents discovered materials consistent with the manufacturing of methamphetamine, and the MDEA lab response team was called to assist with evidence collection and clean-up, McCausland said.

The three suspects were transported to the Aroostook County Jail. Police say the investigation is ongoing and more arrests are possible.

The Maine Department of Environmental Protection and the Sherman Fire Department assisted at the scene as well.

It was the 123rd meth-related incident the MDEA has responded to this year, more than double the number of meth responses in 2015.