SALEM, Ore. (AP) — A woman was arrested and methamphetamine, cash and a firearm were seized during an operation in which police served warrants on residences in the Salem area, police said.

The Salem Police Department said Monday the search warrants served earlier this month by police, the FBI and DEA were the result of an investigation by the Street Crimes Unit into the distribution of drugs in the Salem area.

Maria Gallegos-Mendoza, 45, of Salem was charged in a federal complaint last week with possession with the intent to distribute meth and conspiracy to distribute meth.

According to the complaint, Gallegos-Mendoza told investigators that she had been selling methamphetamine for two years in amounts of 3.5 grams to one pound, authorities said. The complaint also says Gallegos-Mendoza would sell pound quantities of methamphetamine for approximately $2,500 each.

Approximately 31 pounds of methamphetamine and $50,000 were seized. The street value of the drug seizure was estimated at approximately $75,000, police said.