High winds blowing salt causes multi-vehicle crash near Morse, Sask.

An RCMP cruiser can be seen in this file photo. (David Prisciak/CTV News)

Two people are in hospital with serious injuries after high winds caused visibility problems on a stretch of the Trans-Canada Highway in southwest Saskatchewan on Friday.

According to Saskatchewan RCMP, winds blowing nearby natural salt deposits near the route caused poor visibility on Highway 1 near the community of Morse – located 180 kilometres west of Regina.

As a result, four vehicles collided in the area – leaving two travellers with injuries described as “serious but non-life-threatening.”

“Officers ask motorists to slow down in the area,” RCMP said in its advisory. “Drive at a speed that’s appropriate and safe for current visibility.”