Two snowmobilers have disappeared southwest of Montreal.
The SQ said the two men were last seen Thursday night.
"We're talking about a 29-year old and a 30-year old man. They were both on the same snowmobile, so they were reported missing in the Valleyfield area, between St Barbe and Valleyfield", said provincial police spokesman Stephane Tremblay.
He said Saturday afternoon the snowmobile was found, but the men were still missing.
Police divers have been among those looking for the men, who were reported missing Friday afternoon.
A police helicopter has also been involved and police officers have been going door to door hoping to find more about what happened.