Canadian National Railway now says that 35 cars, not 33, with one carrying dangerous goods, went off the tracks near Raymore, Sask.
The derailment happened at 9:45 a.m. CST Friday, just west of the town about 110 kilometres north of Regina.
"It is a car that contains an alcohol product and the initial information that we have from the train conductor is that the car is intact and is not leaking," CN spokesman Jim Feeney said.
RCMP say no leaks have been reported and there is no risk to public safety at this time.
No injuries have been reported.
Wilf Bentz, who lives beside the tracks where the crash occurred, said the derailment shook his house.
"We heard this big rumble and the next thing was, it just ground to a halt and it's been sitting there since," he said.
The derailment is blocking off two rural roads in the area.
Feeney told CBC News on Friday afternoon that more CN personnel had arrived at the site of the crash. From their investigation so far, workers do not believe CN track nor equipment was to blame for the crash, he said.
Feeney said a witness to the derailment told CN workers on scene that they saw a load of steel plates shift near the front of the locomotive, throwing the cars off course. Feeney said they do not know why this would have happened and are looking into this claim.
Investigators are on their way to the site of the crash, CN said.