Illinois State Police say a driver was robbed on Interstate 55 near Litchfield by men who impersonated police officers.
According to reports, the man told police he was pulled over around 10 p.m. Tuesday by a sports utility vehicle with a flashing red light on its dashboard.
The man said that when he stopped, three men wearing ski masks held him at gunpoint as they robbed him of more than $5,000 in cash. The robbers then tied him up with duct tape and left him in his car along the highway.
The man told police that one of the robbers wore what looked like a police uniform.
No arrests have been made.