MADISON, S.D. (Press Release) – One man died Saturday afternoon in a two-vehicle crash that occurred east of Madison.

Names of those involved are not yet being released pending notification of family members.

A 2011 Honda Accord was eastbound on South Dakota Highway 34 when it rear-ended a 2002 Peterbilt semi-truck and trailer which had just turned eastbound onto Highway 34.

Both occupants of the Honda Accord were taken to the Madison hospital. The 18-year-old male passenger, who was not wearing a seatbelt, was later pronounced dead. The 19-year-old male driver suffered serious non-life threatening injuries. Whether he was wearing a seatbelt is under investigation.

The two occupants of the semi-truck, the male driver and female passenger, were wearing seatbelts and were not injured. Both are 59 years old.

South Dakota’s Highway Patrol continues to investigate the crash.

The Highway Patrol is part of the South Dakota Department of Public Safety.