Parliament car crash suspect named as Birmingham-based 29-year-old Salih Khater
A man arrested on suspicion of terror offences and for attempted murder after crashing a car outside the Houses of Parliament is 29-year-old Salih Khater from Birmingham, ITV News understands.
The crash, which injured three people, is being treated as a terrorist incident and counter-terrorism police are leading the investigation.
This is what we know about the suspect so far:
ITV News Security Editor Rohit Kachroo
Salih Khater is understood to be a UK national of Sudanese origin.
He was arrested following the crash at 7.37am on Tuesday by armed officers.
Police claim he was born, studied and grew up abroad before acquiring British citizenship when he moved to the UK.
A Facebook page for a man of the same name says he lives in Birmingham, works as a shop manager, and has studied at Sudan University of Science and Technology.
Coventry University also confirmed that Khater was an accountancy student between September 2017 and May 2018 - but is no longer enrolled at the university.
Detectives have established that the Ford Fiesta used in the suspected terror attack, registration number FL10 CWZ and which is privately owned, travelled from Birmingham to London late on Monday night, arriving in the London area just after midnight.
The vehicle was in the Tottenham Court Road area between approximately 1.30am until 5.55am.
It was then driven around the Westminster and Whitehall area from approximately 6:00am and stayed in this area until the time of the incident.
In footage aired by the BBC, the silver Ford Fiesta can be seen coming along the road next to Parliament Square before moving to turn right towards Westminster Abbey.
As an ambulance passes the car on its right-hand side, the vehicle swerves left, crossing oncoming traffic and a pavement before entering a small road and crashing into a security barrier.
A police officer can be seen jumping another barrier that runs along the side of the road to get away.
Scotland Yard's head of counter-terrorism Neil Basu said the car was not being pursued by police and although the incident appeared to be "deliberate" he "could not comment" on the driver's motives, and whether the police officers were targeted.