Semi strikes school bus loaded with students, multiple patients taken via helicopter, WSP says

Authorities say 20 people were hurt, including four seriously, when a semi crashed into a school bus in south central Wisconsin.

Officials say nine injured people were being treated at UW Hospital. State Patrol Sgt. Greg Jenswold says none of the injuries appear to be life-threatening.

Jensvold says the patrol had been trying to locate the semi after 911 callers reported its operator was driving erratically.

The crash happened Wednesday morning along Interstate 39 near Lodi, about 95 miles (150 kilometers) northwest of Milwaukee. The patrol says the bus was parked on the shoulder after experiencing mechanical problems when it was struck.

Authorities say about 33 people were on the bus. It was carrying students from a private school in the Milwaukee area to the Wisconsin Dells.

Part of the interstate was closed during the investigation but has since reopened.

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Multiple people were taken via Med Flight from a crash between a school bus and a semi on Interstate 39 Wednesday morning, officials said.

Wisconsin State Patrol said four people where injured at 10:16 a.m. when a semi struck a school bus loaded with students at mile marker 122.

The students are from a Milwaukee-area private school, officials said. The bus was parked on the shoulder when it was struck.

Students will be transported to the Wisconsin State Patrol De Forest Post for reunification, officials said.

All northbound lanes on I-39/90/94 at mile marker 123 are closed after a crash was reported at about 10:15 a.m., according to the Wisconsin Department of Transportation.

Traffic is being detoured off the interstate at County V in Dane County, the DOT says. Motorists are advised to exit at County Road V, go east to Highway 51, north to Highway 60, then west back to I-39/90, according to a traffic alert.

At about noon, northbound lanes of I-39/90/94 were still at County V in Dane County, and backups in excess of 3 miles were being reported, the DOT said.

News 3 has a crew en route to the scene. Refresh the story for updates as we receive them.

Semi strikes school bus loaded with students, multiple patients taken via helicopter, WSP says