TransCanada is investigating a possible pipeline leak in a remote area of northern Alberta.
Company officials say a drop in pressure was detected at 2:50 a.m. in its north-central corridor natural gas pipeline about 140 kilometres west of Fort McMurray.
The pipeline, part of TransCanada's Nova Gas Transmission Limited system, has been shut down and personnel are heading to the isolated site.
The nearest residence is more than 50 kilometres away, said company spokesperson Shawn Howard.
Howard would only say some natural gas was released from the line and that more information would be forthcoming once the situation is assessed.
The Calgary-based company is working to develop its Energy East Pipeline proposal, which would send 1.1 million barrels of oil per day from Western Canada to refineries and export terminals in Eastern Canada.