The mother of a three-year-old girl who was the subject of an Amber Alert in Maine last week has been charged with endangering the welfare of a child.

Karen Lea, 40, has been charged in connection with the Amber Alert on Oct. 4, police said in a news release on Tuesday.

The Amber Alert system was activated after Lea was taken to the hospital for what police described as a drug-related medical emergency.

While Lea was being treated, Fatima Gissentaner, 26, told officials the woman's daughter, Lenore Wilson, was with her and she would turn the girl over to Augusta police.

When the child was not taken to the police department, officials activated the state's Amber Alert system. It was just the second time the system has been used since it was put in place in Maine in 2002.

Later in the day, Lenore was dropped off with police, and the Amber Alert was cancelled. Police did not say who took the child to the police station.

Gissentaner's boyfriend, identified only by his nickname, "Dollar,” was also believed to be with the child when the Amber Alert was issued.

Police said Tuesday that Gissentaner and "Dollar,” who are both from New York, may be out of state and have not come forward to talk to police about the incident.

According to the release, detectives are finalizing their investigation and will meet with the district attorney's office to determine if additional charges will be filed.