Five people were sent to hospital following a Sunday afternoon crash on the westbound Lincoln Alexander Parkway.
Hamilton police said the multi-vehicle collision happened around 3 p.m. with several adults suffering serious but non-life-threatening injuries.
Traffic on Mohawk Road West was slowed between Golf Links Road and the Linc off-ramp for hours.
“Driver impairment has been ruled out but all other contributing factors are still under investigation,” Hamilton police said in a release.
“The intersection was closed for approximately six hours for the investigation.”
Anyone with information on the crash can reach out to Hamilton police.