Canadian Pacific Railway says strong plow winds caused the derailment of a train in southern Saskatchewan on Thursday night.

Spokeswoman Salem Woodrow said it happened about 7:30 p.m. east of Waldeck, about 200 kilometres west of Regina.

She said initial reports were that 33 cars were off the tracks, but she didn't know what the cars were carrying.

There were no injuries, no leaks and no evacuations.

A plow wind moves along a narrow, straight path and is usually associated with a thunderstorm.

Woodrow said the line was to reopen later on Friday.

Environment Canada meteorologist Ron Paola said there were storms in the area at the time.

Mounties said the tracks run alongside the Trans-Canada Highway, but no cars or debris from the derailment were on the road.

An officer said traffic would eventually be reduced to one lane so cleanup crews could get equipment to the site.

The federal Transportation Safety Board said Friday it is sending a team to investigate the derailment.

It's the third time a CPR freight train has derailed in southern Saskatchewan in six weeks.

--- with files from CTV Regina