CHANNAHON, Ill. (CBS) — Multiple people were injured Thursday afternoon in a four-vehicle crash on Interstate 55 in Channahon.

The crash happened at 1:51 p.m. on southbound I-55 at Arsenal Road, according to Illinois State Police.

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All four vehicles were headed south in the right lane, and three of them were slowed down for traffic ahead. For reasons unknown, the fourth vehicle – a tanker truck carrying water – did not stop in time and ended up slamming into the rear of the sport-utility vehicle in front of it, state police said.

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The front end of that SUV in turn hit the SUV in front of it, which in turn hit the semi-trailer truck in front of it, state police said.

Multiple people were hospitalized with minor injuries, state police said. All lanes of southbound I-55 were closed after the crash, and it took more than an hour to reopen the left lane.

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Further details were not available Thursday afternoon.