https://www.dailymail.co.uk/news/article-6058215/Armed-police-race-Houses-Parliament-car-smashes-barriers.html
"Several people are injured after car 'intentionally ploughs into cyclists at 50mph' and smashes into security barriers outside Houses of Parliament before armed police arrest man
Scotland Yard has confirmed that a man has been arrested outside Parliament after rush hour crash
Suspect was pulled from the car by armed officers who surrounded vehicle outside St Stephen's entrance
Pedestrians and cyclists struck by the car before it hit barriers with huge bang at up to 50mph
Met have swamped the area with hundreds of officers and set up a 'Terrorism Act cordon'"