A man has been arrested on suspicion of terrorism offences after a car crashed outside the Houses of Parliament.
The vehicle swerved into cyclists and pedestrians shortly after 07:30 BST, injuring three people.
The 29-year-old suspect is not believed to be known to MI5 or counter-terrorism police, and is not co-operating with officers. Searches are taking place in Birmingham and Nottingham.
Two people were treated in hospital for their injuries but discharged.
Scotland Yard’s head of counter terrorism Assistant Commissioner Neil Basu said: “Given that this appears to be a deliberate act, the method and this being an iconic site, we are treating it as a terrorist incident.”
He added there was “no intelligence at this time of further danger” to London or the UK as a whole.
