Train carrying propane derails near Nipigon in northern Ontario

Canadian Pacific Railway locomotives move cars at a railyard in Calgary, in a May 16, 2012 photo. (Jeff McIntosh/THE CANADIAN PRESS)

NIPIGON, Ont. -- Canadian Pacific says a train carrying propane has derailed in northern Ontario.

Police say the derailment occurred Tuesday morning approximately 45 kilometres east of Nipigon.

A Canadian Pacific Railway derailment crew, CP police and local fire and rescue workers are at the scene.

A railway spokesman said seven cars were carrying propane and there is a "minor leak" from one of the cars.

No injuries have been reported after 22 cars derailed.

Police say a hazmat unit from CP Rail will assess the site before cleanup can commence, and the Transportation Safety Board of Canada says it's deploying a team of investigators.

Officers have set up a perimeter around the affected area, and Highway 17 from Nipigon to Schreiber is expected to be closed until around noon on Wednesday.