A collision on Highway #1 has taken the lives of three people.

The collision happened on Monday around 3:20pm. Maple Creek RCMP determined a semi was parked on the side of the highway and an SUV collided with it.

EMS declared three occupants in the SUV as deceased at the scene. They have been identified as a 49-year-old woman, a 72-year-old woman, and a 75-year-old man, all from Estevan. Their families have been notified.

A fourth occupant of the SUV was taken to hospital by EMS with injuries described as serious in nature.

The driver and passenger in the semi did not report injuries to police.

Maple Creek RCMP continue to investigate with the assistance of a Saskatchewan RCMP collision reconstructionist.