CHICAGO (CBS) — A sport-utility vehicle went out of control and slammed into a side wall on the inbound Kennedy Expressway early Tuesday, leaving the driver slightly injured and causing a massive traffic jam approaching downtown.

As CBS 2’s Kris Habermehl reports, sometime before 6 a.m., the SUV was headed inbound in the local lanes when it slammed into the side wall near Ohio Street. The side wall separates the locals from the express lanes, which rise from grade level around that point.

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Three left lanes were shut down just north of Hubbard’s Cave as first responders dealt with the accident.

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The driver of the SUV was slightly injured, but was not expected to require hospitalization.

But the accident caused a serious traffic jam in both the local and express lanes on the inbound Kennedy, from Armitage Avenue southeast all the way to the Ohio Street feeder ramp.

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By 6:30 a.m., the accident had been cleared, CBS 2’s Derrick Young reported.