The Cariboo Regional District has released troubling video of what locals are already calling an environmental disaster following the release of five million cubic metres of effluent from a tailings pond at the Mount Polley gold and copper mine near Likely, B.C., on Monday. 

This YouTube video released by the CRD provides a sobering view of the extent of the damage.

Possible causes of the release are still under investigation.

Cariboo Regional District helicopter flyover of debris flow, tailings pond breach

Aerial footage shows the debris and milky blue-green tailings pond water that washed into nearby waterways after the Mount Polley Mine tailings pond breached Monday, Aug. 4, 2014. (Cariboo Regional District/Facebook)