KNOXVILLE, Tenn. (WATE) — Two people suffered serious injuries in a crash on I-640 in Knoxville on Tuesday.

Emergency personnel responded to the single-vehicle crash near Broadway around 3:30 p.m.

Two people suffered serious injuries in the crash. A passenger's injuries are potentially life threatening, police wrote in an update on social media around 9 p.m. The driver's injuries are not believed to be life-threatening. A child passenger was not harmed in the crash.

One westbound lane was shut down for several hours.

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An investigation is underway. Speed is believed to be a factor in the crash.

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