Authorities are at a home in Lennox, south west of Sioux Falls, where three people have been shot and killed.
Lincoln County Sheriff Dennis Johnson briefed the media early this afternoon
Johnson says the child was of elementary school age.
Johnson says they are not pursuing a suspect
Johnson says they got a call to respond to the home about ten this morning. Multiple county, state and federal agencies are on the scene. Johnson says it will take some time to wrap up the investigation.