State police said the fatal shooting of a woman in a van on Lake Shore Drive early Friday stemmed from "gang or drug activity" and there was no threat to the general public.

The woman was shot to death when another van drove up alongside of it and someone inside opened fire, police said.

Responding to a call of a car crash, police discovered a woman shot inside a van in the southbound lanes of Lake Shore Drive near I-55, said police News Affairs Officer Hector Alfaro.

Illinois State police said someone in another van opened fire on the van, riddling it with bullets. The woman was formally pronounced dead at Northwestern Memorial Hospital, state police said.

Another female passenger in the van was not injured, state police said.

State police said the two women were coming from a location on the North Side of Chicago when the shooting occurred, and the shooting was an isolated incident, related to gang or drug activity.

As a result of the fatal shooting, authorities closed off southbound lanes on the Lake Shore Drive ramp leading to the Stevenson Expressway (I-55) about 4:20 a.m., state police said. State police did not know when the ramp would reopen and the closure was leading to long traffic backups on Lake Shore Drive Friday morning.

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CHICAGO (AP) - Authorities responding to a report of a crash on Chicago's Lake Shore Drive found a minivan riddled with bullets and a woman who'd been fatally shot.

Illinois State Police officials investigating the shooting say it appears to have been motivated by gang and drug activity. Officials say it wasn't a random shooting or a case of road rage.

The shooting happened early Friday on a ramp from Lake Shore Drive to Interstate 55. State police say a van pulled alongside the minivan and somebody in the van opened fire.

Authorities say the minivan's 32-year-old driver was later pronounced dead at Northwestern Memorial Hospital. A female passenger in the minivan wasn't injured.
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