One person has died following a three vehicle crash on Highway 6 in Wellington County.

Ontario Provincial Police say a passenger vehicle, pickup truck, and SUV collided near Sideroad 9 around 2:30 p.m. on Saturday.

An 89-year-old man, who was the driver of the passenger vehicle, was pronounced dead in hospital.

Three others were also taken to hospital and suffered minor injuries.

"What we see technically, with fatal collisions, is the investigation is quite lengthy and takes a while depending on which avenues the investigation follows," said Const. Jacob Unger with the OPP. "We did have witnesses stay on scene yesterday, so they were able to provide their accounts to officers, which is always very helpful, but then because it involved three vehicles, that can also add to the length of time."

Police closed Hwy. 6 between Sideroad 8 and Sideroad 10 for several hours.

Anyone who saw the crash or has dashcam footage is asked to contact Wellington County OPP.