St. Louis County, MO (June 3, 2026) – Four people were hurt on Tuesday afternoon following a five-vehicle crash on northbound Interstate 270 between Gravois Road and Interstate 44 in St. Louis County.
According to the Missouri State Highway Patrol Troop C, the crash happened at about 12:18 p.m. on June 2 when a Mazda 5 struck the rear of a Tesla Model Y. The initial impact led to a chain reaction involving three additional vehicles: a Nissan Rogue, a Buick Lucerne, and a GMC Canyon.
Officials said the Mazda driver, a 51-year-old man from St. Louis, along with two passengers inside the Mazda—a 49-year-old woman and a 13-year-old girl—were injured and taken to a hospital in Creve Coeur. An 83-year-old woman from Ballwin, who was driving the Tesla, also suffered minor injuries and was transported for treatment.
The Missouri State Highway Patrol is continuing to investigate the sequence of events leading up to the collision. Our thoughts are with all those injured and hoping for a full recovery.
Why Chain-Reaction Highway Crashes Can Involve Multiple Injuries
Chain-reaction crashes often occur on highways when one vehicle slows or stops suddenly, giving following drivers little time to react. Because multiple vehicles travel at higher speeds in proximity, a single rear-end collision can quickly involve several other cars.
The severity of injuries can vary depending on speed, seat position, and how many impacts occur in sequence. Rear impacts may also push vehicles into adjacent lanes, increasing the chance of secondary collisions.
In multi-vehicle crashes, investigators typically examine braking distance, traffic flow, and spacing between vehicles to understand how the initial impact triggered the larger sequence of events.
