A man with a knife has been arrested by armed police outside the Palace of Westminster.
The bearded suspect, wearing black trousers and a grey jumper, was led away into a van by officers after being detained for around 30 minutes.
He was held with his arms against his back just yards from the forecourt of the building, where police officer Keith Palmer was stabbed to death by terrorist Khalid Masood in March.
Scotland Yard said the man - in his 30s - was arrested on suspicion of possessing a knife.
There are no reports of injuries, and the incident is not thought to be terror-related.
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Security around Westminster was tightened following the attack by Masood, who was shot dead.
PA
