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GARDEN CITY, Mo. — Four people are now dead in a Cass County crash involving a tractor trailer and SUV.

Three people initially died in the crash, but a fourth person has since died from their injuries.

Missouri State Highway Patrol confirmed the driver of the semi and three people in the SUV have died. A fourth person in the SUV was injured. None of the victims have been identified, but MSHP did say no young children were involved.

Missouri 7 Highway at State Route F, south of Garden City, Missouri was closed for several hours because of the crash. As of 4:20 p.m. Monday, the highway is back open, the Missouri State Highway Patrol said.

The highway patrol and Cass County Sheriff’s Office are investigating the crash.