WATERTOWN, S.D. — An overnight traffic collision that killed a 43-year-old woman Tuesday, Sept. 17, in Watertown is being treated as a homicide investigation involving a 16-year-old Moorhead teen, according to Tim Toomey, Watertown assistant police chief.

Police have calculated that the teen in a 2014 Volkswagen Jetta that struck Dawn Meyer's car was traveling more than 100 miles an hour. Toomey said the crash was being investigated as an attempted suicide.

Meyer died at the scene.

Police say Meyer's speed at the time of the incident, which was 4:58 a.m., was less than 35 mph.

The Moorhead teen was taken by ambulance to Prairie Lakes Healthcare System with serious injuries.

Meyer was driving a 2007 Ford Focus.

The initial investigation by police indicates the teen was westbound on Highway 212 when he crossed into the eastbound lane and struck Meyer’s vehicle head-on.

The investigation is ongoing and charges are pending against the male, who has not been identified.