An investigation is under way after a Canadian Pacific Railway train hauling crude derailed and caught fire last week in Saskatchewan, the second such incident to occur in the western Canadian province since December.

The train jumped the tracks near the town of Guernsey on Thursday, with 33 of the 104 cars derailing and more than one dozen catching fire, according to local reports.

Canadian Pacific said there were no injuries to the crew and no impacts to waterways, but evacuations were ordered in the town of Guernsey.

The status of the fire was unclear on Monday, though local reports said the rail line had reopened and residents were allowed to return to their homes on Friday.

A highway remained shut down, however.

Canadian Pacific did not immediately respond to a request for comment on Monday. Neither did the Saskatchewan Public Safety Agency nor ConocoPhillips, which is reported to own the diluted bitumen that was being hauled by the train.

According to reports, the train was using newly built cars meant to be more puncture-resistant than previous designs. The new cars were endorsed by the Canadian government in the wake of the 2013 derailment and explosion in Lac-Megantic, Quebec that left 47 people dead.

The Transportation Safety Board of Canada has launched a probe into the derailment. Meanwhile, it is still investigating a similar incident near Guernsey that occurred in December.

Immediately following the derailment, Canadian Pacific implemented a slow order on its crude trains "as a precautionary measure" as it also investigates the incident.

Canada's Transport Minister has also issued an order requiring trains carrying 20 or more cars of "dangerous goods" to slow to 20 miles per hour in metropolitan areas and to 25 miles per hour everywhere else.

"CP fully supports this action and it has been implemented effective immediately," Canada Pacific chief executive Keith Creel said last week.

"Until we better understand the facts relating to today's incident, it is prudent to operate with an abundance of caution."

The company also said it was "working collaboratively with local officials" in responding to the derailment and would deploy claims officers to assist displaced community members.

"CP is in close contact with regulators and local officials and will keep them informed as the situation progresses," the company said.

"Crews will work diligently and will ensure the area is cleaned up and restored after CP safely recovers from this incident."