St. Joseph police are warning you to avoid the south junction of I-29 and I-229 because of an injury accident.

A semi jackknifed into a car at the 42.4 mile marker of southbound I-29 shortly after 4:30 am.

Police say traffic will be impacted “for an undetermined amount of time” according to a Nixle alert.

Witnesses say one lane of traffic is getting through, but officers on the scene worry that morning rush-hour traffic will be slowed down by the crash.

At least one person was transported to the hospital.

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