Canada has lifted a drinking water ban in the west of the country after a mining accident sent polluted water and silt gushing into rivers, lakes, and streams.

As CCTV America’s Kristiaan Yeo reports, the incident is raising questions about safety standards at Canadian mines.

Canadian mining accident raises safety concerns

Canada has lifted a drinking water ban in the west of the country. A mining accident sent polluted water and silt gushing into rivers, lakes, and streams. As CCTV America's Kristiaan Yeo reports, the incident is raising questions about safety standards at Canadian mines.