article_snippet: Police are still investigating threats to kill BBC director-general Tony Hall, which are thought to be linked to his decision to axe Clarkson.
article_snippet: Scotland Yard confirmed Scotland Yard was looking into allegations made when Mr Hall confirmed Mr Hall would not be renewing Jeremy Clarkson's contract because of Mr Hall unprovoked attack on Mr Tymon at a North Yorkshire hotel.
article_snippet: The Mail on Sunday reported that the director-general and wife Cynthia have been under 24-hour guard since the threat was received.
article_snippet: A Scotland Yard spokesman said: 'Police in Westminster are investigating an allegation of threats to kill. 'an allegation of threats to kill was reported to police on Wednesday March 25.