Suncor has reported six million litres of water that exceed sediment guidelines have been released into the Athabasca River from a pond at its Fort Hills oilsands mine.

Residents in the northern Alberta community of Chateh, west of High Level, could be out of their homes for several months after flooding forced them to evacuate Sunday and Monday. 'This is the worst flooding we ever had,' Dene Tha' First Nations chief says.