BBC: Sean Smyrichinsky was diving for sea cucumbers near British Columbia when he discovered a large metal device that looked a bit like a flying saucer. By Robin Levinson-King
'The Canadian Department of National Defence (DND) believes it could be a "lost nuke" from a US B-36 bomber that crashed in the area in 1950.
'The government does not believe the bomb contains active nuclear material.
'It is sending naval ships out to the site, near the Haida Gwaii archipelago, to verify the find.'