Five people were taken to the hospital after a two-vehicle crash on Tecumseh Road near Jefferson Boulevard Tuesday morning.
The crash happened just before noon in the eastbound lanes. The road was closed for several hours but has since reopened.
All of the people taken to the hospital had severe, life-threatening injuries.
Members of the Windsor Police Traffic Reconstruction Unit are investigating the collision. Investigators are asking anyone in the area around 11:50 a.m. to check their dash cameras for footage of the incident.
Anyone who witnessed the collision or who has information is urged to contact the Windsor Police Service at 519-255-6700, ext. 4000.