A 31-year-old man has died after a workplace incident at the PotashCorp Cory mine just west of Saskatoon...The man was working underground when part of the roof or sidewall became dislodged and fell on top of him...PotashCorp...said "This is a very sad day at PotashCorp,"...adding that grief counselling is available for staff at the site. Operations have temporarily ceased at the mine while Occupational Health and Safety investigates.