A 45-year-old man was pronounced dead at the scene of a collision between two semi tractor-trailor units on Sunday, Dec. 23 east of Estevan. The accident occured shortly before 2 PM.

According to the Estevan RCMP, the eastbound semi collided with the westbound semi while going around a curve on Highway 18 east of Hirsh, which is 30 kilometres east of Estevan.

RCMP believe one or both of the vehicles crossed the centre line.

The driver of the eastbound truck, a 45-year-old man originally from Red Deer, Alta., died at the scene. His name is not being released, but he is believed to have been living in the Redvers area.

The driver of the westbound semi was treated on the scene for minor injuries.

There was light snow and blowing snow at the time of the collision, which RCMP believe may have contributed to the collision. According to RCMP, road conditions were good at the time of the accident.

The westbound driver said he passed a snowplow before the accident, which reduced visibility. The presence of a snowplow is under investigation.

Traffic was routed around the area until 2 AM while a traffic reconstruction team investigated the accident and the debris was cleared off the highway.

The investigation is ongoing.

RCMP are reminding motorists to use caution when traveling on roads and highways over the holiday season.