One person is dead and two others are in hospital following a single rollover on Oneida Nation of the Thames First Nation.
Just before 3:30 a.m. Sunday, emergency crews were called to Fairgrounds Road south of Oneida Road.
A sport utility vehicle carrying three men was travelling along Fairgrounds Road when it left the roadway and rolled.
A 59 year old man was declared deceased at the scene.
Two others suffered non-life threatening injuries.
The investigation is continuing.
Identification of the deceased is being withheld pending next of kin notification.
Anyone with information on this investigation is encouraged to contact police.