1. Southwark: Two men killed as four people stabbed in central London  London Evening Standard
  2. Southwark: Two dead and two in hospital after attack at business  BBC
  3. Two dead after four people stabbed at business premises in central London  The Guardian
  4. Two killed in stabbing at business premises in London  Sky News
  5. Two stabbed to death near Tower Bridge in central London, police say  Reuters