Nissan bosses have confirmed the "desperately sad news" that a member of staff died at the firm's Sunderland factory on Monday afternoon.
The man, who has not been named, is thought to have suffered a heart attack. It is understood that members of staff tried valiantly to save his life by performing CPR - but were unsuccessful.
In a note sent to staff, Nissan executive Adam Pennick thanked those who had attempted to save the man. He also said the company's thoughts were with the family affected. The factory remains operational.