The Morgan County Sheriff’s Office says a person driving a white Sebring was chased by a car, unknown make or model, that flashed blue and red lights on Route 104 at Reese Curve. The Jacksonville Police Department says it was an 18-year-old city woman. The call came in just before 9 p.m.

The JPD says the woman didn’t pull over, but the driver apparently made a U-turn, ending the chase.

Police are still looking for a man they say impersonated a cop in two separate incidents this week on Old Jacksonville Road in western Sangamon County. Red-and-blue flashing lights were apparently used the second time.

The man is accused of sexually assaulting a 16-year-old girl in the first incident after pulling her over using a white rotating light. The woman in the second instance sped away after being pulled over initially.

The man’s vehicle is described as an old, small, white four-door car in poor condition. The man is described as a white male, about 50 years old, 5-foot-10 inches to six feet tall with a thin build and possibly salt-and-pepper hair. His voice was high-pitched with a Southern accent.

UPDATE: The Morgan County Sheriff's Office says another incident related to an individual impersonating a cop occurred Saturday night. The incident happened west of Waverly on Route 104 near Perry Road at around 8:30 p.m.

The sheriff's department says a driver put on red flashing lights to try and pull someone over, but the driver apparently kept going to the Fanco gas station in town. The alleged cop impostor ended the chase and made a U-turn.

Police are still looking for the driver. if you have any information, call the sheriff's office at 217-245-6103.

If you're being stopped and you're unable to determine whether it's legitimate law enforcement or not, it's recommended that you put on your flashers, drive at a slow speed and drive to a well-lighted area.

If you're in Morgan County, dialing 911 will either direct you to the sheriff's department or the Jacksonville Police Department, and the dispatcher can quickly check with law enforcement to confirm it's one of their officers engaged in the traffic stop.

Updated at 8 a.m. Sunday