ST. LOUIS, Mo. (First Alert 4) - One person was killed and three others were injured in a crash in Jefferson County Sunday night.

According to the Missouri State Highway Patrol, the crash happened just after 11 p.m.

A KIA Forte was trying to turn onto Upper Byrnes Mill Road but failed to yield to ongoing traffic.

A Chevy Equinox that was passing by struck the passenger side of the KIA, causing both cars to go off the side of the road.

An 18-year-old woman inside the KIA was pronounced dead.

The driver of the KIA, a 21-year-old man, was taken to the hospital in serious condition.

Neither the passenger nor the driver of the Equinox was seriously injured.

The investigation is ongoing.

First Alert 4 will provide updates as new information becomes available.

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