Five million litres of a bitumen-water-sand emulsion were found to have leaked Wednesday from a Nexen Energy pipeline south of Fort McMurray, Alta. — one of the biggest oil spills in the province's history.
It adds further fuel to the debate over pipeline safety that continues to rage on, most recently emerging as a point of contention among premiers meeting in St. John's this week.
It's not the first time crews have been dispatched to clean up a leak.
Here are six other pipeline spills in Alberta: Read more