Icy highways were causing major problems for motorists in Saskatchewan on the weekend, with slippery conditions, accidents and stuck vehicles widespread of the province.

The worst of the accidents occurred Saturday on Highway 312 about eight kilometres east of Rosthern.

One person died and two people were taken to hospital with undisclosed injuries.

Just south of Glaslyn on Sunday night, there was sheet ice on a 10-kilometre stretch of the Highway 4 and several vehicles were in the ditch.

About 75 kilometres west of Moose Jaw, semi-trailers were backed up on the Trans-Canada Highway for several kilometres on Secroten Hill thanks to icy conditions that brought traffic to a crawl.

A lane on the Trans-Canada was also blocked just west of Grenfell, when a semi was involved in a minor accident and ended up in the ditch.

The RCMP said highway conditions were "very poor" over a wide area, with more than 40 accidents reported on Sunday.