According to the Missouri State Highway Patrol, a dump truck pulling construction equipment collided with three cars around 7 a.m., causing a six-car crash.
Investigators said two women, ages 37 and 56, suffered moderate injuries; a 59-year-old woman was in serious condition.
The truck driver escaped the accident without injury.
The dump truck belongs to the Basic Asphalt Paving Company in House Springs. Fox 2/KPLR 11 reached out to the company, but a spokesperson said they were waiting for more information and had no comment.
The area around the crash site was completely shut down during the height of the morning commute. As a result, the crash caused a backup that went on for miles.
There’s no word on charges being issued in the case.