Streamwood police said officers responded to the scene at Oak Knoll Court and Williamsburg Drive just after 5 a.m.
There, officers found an unresponsive 68-year-old woman, who they say was accidentally hit by a vehicle, in the roadway.
The woman was pronounced dead on the scene. Her identity was not immediately released.
Video shows several evidence markers placed on the street. Part of Williamsburg Drive is closed to traffic.
Police are investigating and asked anyone with information to call them at 630-736-3700 or leave a message on the Streamwood Police Department Confidential Tipline at 630-736-3719.