CHICAGO – 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 of 32-year-old Michelle Smith of Chicago 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.

Illinois State Police Captain Luis Gutierrez says what led the shooter to fire off "10 to 14 rounds" was unclear Friday and investigators had no one in custody. A passenger in Smith's van wasn't injured.