Officials with the Yukon government say dozens of dead fish found earlier this week in a creek near Victoria Gold's Eagle mine were likely killed by a discharge of contaminated water from the mine site.

In Northwest Alaska, the Red Dog mine faces potential delays in expansion, risking future revenue and jobs for the local community, amid environmental and cultural impact concerns.

The Red Dog Mine announced last week that it was able to start the use of a new waste water treatment system to purify water after record-breaking warm weather in 2019 caused the sediment levels to rise in the Ikalukrok and Wulik Rivers.

Permafrost thaw surrounding the massive Red Dog Mine is releasing higher natural levels of dissolved minerals and other particles into streams, Teck Resources Ltd. says