One person is in hospital with life-threatening injuries after a single vehicle crash on Longwoods Road near Thamesville.
Emergency crews were called to the scene around 4:30 p.m. Tuesday.
The Chatham-Kent Police Service has not released any information on the identity of the person injured or on the cause of the crash.
Anyone with information is asked to contact Constable Ron Tricker at 519-355-1092 or Crime Stoppers at 1-800-222-TIPS (8477).