( CNN ) The BBC 's director-general , Tony Hall , has allegedly received death threats days after `` Top Gear '' host Jeremy Clarkson was dropped . `` Police in Westminster are investigating an allegation of threats to kill , '' the Metropolitan Police confirmed to CNN in a statement . The allegation was reported to the police on Wednesday . `` The threat was made by email , '' the police added . `` The content of the message suggests ( it was sent ) from outside the UK . '' The alleged threats come shortly after Hall took the decision to dismiss popular presenter Clarkson from `` Top Gear , '' one of the most-watched television shows in the world . `` Top Gear '' was suspended March 10 after an apparent altercation between the motor show host and producer Oisin Tymon on March 4 . At the time , the BBC issued a statement saying that there had been a `` fracas '' between the host and a BBC producer . More than 1 million fans of Clarkson and `` Top Gear '' signed a petition to reinstate the host . The document was delivered to the BBC 's headquarters by a fan dressed as the `` Stig '' -- the incognito racing car test-driver who appeared regularly on the show -- driving an armored tank . On Wednesday , the British broadcaster announced that it would not be renewing Clarkson 's contract as host of `` Top Gear '' after he allegedly busted his producer 's lip and hurled verbal abuse at him . Hall issued a statement online following the decision . `` It is with great regret that I have told Jeremy Clarkson today that the BBC will not be renewing his contract , '' he announced . `` It is not a decision I have taken lightly . I have done so only after a very careful consideration of the facts and after personally meeting both Jeremy and Oisin Tymon . '' Placing emphasis on Clarkson 's legacy , Hall added that the BBC will be looking into a new host for `` Top Gear '' in 2016 . `` This will be a big challenge and there is no point in pretending otherwise , '' he said . Inquiries are ongoing to establish where the threat came from , the police said . A representative for the BBC told CNN : `` We do n't comment on security matters . ''
Metropolitan Police say they 're investigating `` an allegation of threats to kill '' Alleged threats received after dismissal of popular `` Top Gear '' host Jeremy Clarkson .