By Stewart Paterson For Mailonline
Published: 16:56 GMT, 24 November 2017 | Updated: 17:07 GMT, 24 November 2017
Hundreds have been evacuated from Oxford Circus tube station amid reports of gunshots.
Armed police have arrived on scene after a gunman was reported to have fired shots.
Witnesses at the scene described seeing a lorry on the pavement surrounded by police as if it had 'ploughed' into pedestrians.
Next to the lorry, the pavement was said to be covered in blood.