UK Parliament attack: What we know so far:
March 22, 2017 21:37
- A police officer has been stabbed at the Houses of Parliament
- A car has crashed into railings at the perimeter of the Palace of Westminster
- At least four, possibly as many as 12 people, have been injured
- Police say they are treating the incident as terrorism until they know otherwise
- Witnesses reported seeing several people "mowed down" by a vehicle on Westminster Bridge
- The House of Commons was suspended after the attack
- Theresa May, British PM, was rushed to a safe location. She was at the Parliament at the time of the attack.
- Transport for London said Westminster underground station has been shut