RCMP are investigating after a mass shooting at a high school in Tumbler Ridge, B.C., has left ten people dead and dozens injured, with two people in critical condition. 

<p>RCMP are investigating after a mass shooting at a high school in Tumbler Ridge, B.C., has left ten people dead and dozens injured, with two people in critical condition.&nbsp;</p>

CTV National News is Canada's most-watched national news program. Now you can stay up to date Monday to Sunday with the CTV National News Podcast, delivered nightly. Listen to Canada’s most trusted newscast featuring stories from here and around the world with a perspective that is distinctly Canadian and backed by the #1 news organization in Canada.

<p>CTV National News is Canada's most-watched national news program. Now you can stay up to date Monday to Sunday with the CTV National News Podcast, delivered nightly. Listen to Canada&rsquo;s most trusted newscast featuring stories from here and around the world with a perspective that is distinctly Canadian and backed by the #1 news organization in Canada.</p>