In the wake of multiple fatal collisions and rollovers recently, police have shared details about another serious collision on Monday afternoon that closed a section of the Trans-Canada Highway near Piapot. Emergency services called into action Around 3:20 p.m., Maple Creek RCMP received a report of a two-vehicle collision on the Trans-Canada Highway, roughly one kilometre east of the Highway 614 intersection, and attended the scene. An investigation determined that an SUV had collided with a semi-truck parked on the side of the highway. Three occupants of the SUV were declared deceased by EMS at the scene. The deceased have been identified as a 49-year-old female, a 72-year-old female, and a 75-year-old male, all from Estevan. Police have notified their families. Related Stories: Serious collision closes Trans-Canada Highway near Piapot Ontario man declared deceased after fatal rollover near Chaplin Outlook RCMP say two dead after collision north of Highway 15 Trio of survivors RCMP say a fourth occupant of the SUV was transported to the hospital with injuries described as serious in nature. The driver and passenger in the semi didn't report any injuries from the incident. A portion of the Trans-Canada Highway was closed for a period of time but has since reopened. Maple Creek RCMP continue to investigate with assistance from a Saskatchewan RCMP collision reconstructionist.