By CBC News Ottawa, June 5, 2015

City of Gatineau officials are trying to find out how an oily substance was
spilled into the Ottawa River across from Kettle Island on Thursday.
Firefighters were called Thursday afternoon after someone spotted traces of what
looked like oil near the Kitchissippi Marina. They say the slick was about 30
metres wide and stretched nearly two kilometres, from Sanscartier Street to
St-Louis Street. via
Gatineau trying to find source of oily spill in Ottawa River - Ottawa - CBC
News.