Fatal crash between semis on Highway 16 near Plunkett, Sask.

SASKATOON – RCMP asked drivers to slow down Monday afternoon after emergency crews responded to a fatal collision between two semi-trucks around 1:50 p.m. CT. The vehicles collided about five kilometers west of Plunkett, Sask. on Highway 16.

Saskatoon RCMP confirmed one man involved in the crash is dead. Police are not releasing his name.

READ MORE: Woman, 23, struck by vehicle on Saskatchewan highway dies

Get breaking National news

For news impacting Canada and around the world, sign up for breaking news alerts delivered directly to you when they happen.

Sign up for breaking National newsletter Sign Up

By providing your email address, you have read and agree to Global News' Terms and Conditions and Privacy Policy.

Both the east and westbound lanes remained blocked off between Highway 20 and Highway 2 late into Monday night. Police warned drivers to expect poor road conditions and detours in the area.

Saeed Ahmed was on his way to Yorkton and saw the collision unfold in front of him.

“Those were really bad conditions. It was snowing really hard and the road conditions started getting really slippery,” Ahmed said.

“I have winter tires on my car, studded, but I couldn’t even go over 50,” he added.

A traffic accident analyst and multiple emergency units responded to the scene.

The cause of the crash is under investigation.