Northbound lanes of Cline Avenue in northwest Indiana re-opened after jackknifed semi

A jackknifed semi created a massive traffic backup in northwest Indiana Wednesday morning.

All northbound lanes of Cline Avenue were blocked at Chicago Avenue because of the jackknifed semi.By 7 a.m., crews had cleared the semi from the road and the northbound lanes were reopened.

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Wednesday, morning, Chopper 7HD flew overhead as traffic backed up more than four miles from I-80/94 up to Chicago Avenue.

There are no reports of any injuries. Freezing drizzle Wednesday morning has created icy conditions across the Chicago area and drivers are asked to take caution.