6 students from Hammond injured in rollover school bus crash on Dan Ryan Expy at 35th Street

CHICAGO (WLS) -- Six students from a private Christian school in Hammond were injured when their school bus rolled over on the Dan Ryan Expressway Tuesday afternoon.

Illinois State Police said they were called around 2:30 p.m. to northbound I-94 at 35th Street for a report of a rollover crash involving a school bus. Only the school bus was involved in the crash, state police said.

The bus was marked City Baptist Schools, a Christian school based in Hammond. School officials told ABC7 there were six students on the bus when the crash happened, and all six were taken to the hospital. School officials said none were seriously hurt.

Chicago fire officials said the children, between the ages of 12 and 16, were taken to Comer Children's Hospital and University of Chicago Medical Center. The bus driver refused treatment at the scene.

The force of the crash detached the windshield from the front of the bus, and shattered windows.

Two lanes of the expressway were shut down for an hour ahead of the evening commute in the aftermath.

What caused the crash was not immediately known beyond state police saying no other vehicles were involved. The bus was traveling a busy stretch of expressway in rainy conditions at the time.

An investigation by Illinois State Police is ongoing.