CHICAGO (CBS) — Northbound Lake Shore Drive was closed just before the morning rush began Friday after a crash.

CBS 2’s Derrick Young reports a crash around 4:30 a.m. shut down Lake Shore Drive just south of North Avenue.

The Outer drive had reopened by 5:30 a.m.

At the scene around 4:45 a.m., several police and fire vehicles were seen on the overpass over LaSalle Drive. The northbound entrance ramp was blocked by a police squad car.

Details of the crash were not immediately learned.

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