AUGUSTA, Maine (NEWS CENTER) — A week after a 3-year-old girl disappeared for a day, prompting an Amber Alert, her mother has been charged in connection with the case.

Augusta Police said its detectives have charged Karen Lea with endangering the welfare of a child. Karen is the mother of Lenore Wilson.

Wilson was reported missing shortly after police responded to Lea's home on Sewall Street last Tuesday because she was suffering from a drug-related medical emergency.

State Police said Lenore was likely with family friend Fatima Gissentaner, also known as China. That woman contacted police and said she would return Lenore to the police station, but never did. This prompted state police to issue an Amber Alert around 1:30 p.m.

Lenore was turned into police later that night around 5:30 p.m. by a still-unidentified man.

"We feel confident that we know what happened from start to finish at this point," Augusta PD deputy chief Jared Mills said. "There were drugs related to this particular incident, and I won't go into specifics, but I can say that was part of it … that did obviously play into our decision to charge Karen."

Police said they have not heard from China, nor her boyfriend, known as Dollar. They said both are not facing charges, so they are not working to track them down.

They also did not say where Lenore is currently staying but did say she is safe and well.

Once the investigation is finalized, which police say is planned to be completed within the next few days, detectives will present the case to the district attorney's office to determine if any other formal charges are filed.