Authorities in northern Missouri say two people have been killed in a small plane crash.

The St. Joseph News-Press reports that the crash happened Tuesday afternoon near Trenton.

The Grundy County Sheriff’s Office says the wreckage of the small Cessna aircraft was found near Missouri Highway 6 and Missouri 139 north, east of Trenton. Officials said in a news release that the Cessna left Humphreys, Missouri, for Kirksville, Missouri, when it crashed.

The release says the two killed were a father and son. Their names were not immediately released.

The Federal Aviation Administration and the National Transportation Safety Board are investigating the crash.