Arlington Police say the body of a 16-year-old girl who had been reported missing this morning was found submerged in about six feet of water at Menotomy Rocks Park Monday.
Police have not released the name of the girl, pending notification of her family.
Arlington Police Chief Fred Ryan said the death does not appear to be suspicious. Ryan told the Globe that police suspect the cause of death was suicide, but the exact cause will be determined by the state Office of the Chief Medical Examiner.
Ryan said the girl, who was not a student at Arlington High School, was last seen with friends in Arlington last night around 8 p.m. at an undisclosed location. The girl’s family reported her missing around 10 a.m. Monday, and Ryan said police quickly traced her cell phone signal to the area of Menotomy Rocks Park.
Police temporarily closed the park while searching for the girl. Police found clothing and other evidence suggesting she could be in danger, Ryan said. Arlington’s Fire Department launched a boat to search for the girl and a state police helicopter were called in to assist with the search.
Ryan said firefighters and police spotted the girl submerged in Hill’s Pond around 12:30 p.m. and called for a medical examiner. Ryan said Menotomy Park is a popular recreational spot, especially on holidays, such as Patriots' Day.
The Middlesex District Attorney Gerry Leone’s Office has also joined Arlington’s investigation and an autopsy will be conducted to determine the cause of death.