This article is from the source 'bbc' and was first published or seen on . It last changed over 40 days ago and won't be checked again for changes.

You can find the current article at its original source at http://www.bbc.co.uk/news/uk-40303300

The article has changed 5 times. There is an RSS feed of changes available.

Version 0 Version 1
Man held by police outside Parliament Man held by police outside Parliament
(35 minutes later)
A man has been detained by armed police outside the Palace of Westminster.A man has been detained by armed police outside the Palace of Westminster.
A bearded man, wearing black trousers and a grey sweatshirt, was seen being held against the fence with his arms behind his back by a police officer.A bearded man, wearing black trousers and a grey sweatshirt, was seen being held against the fence with his arms behind his back by a police officer.
The incident is not thought to be terror related. The Carriage Gates entrance to Parliament is closed.The incident is not thought to be terror related. The Carriage Gates entrance to Parliament is closed.
Joe Murphy, political editor of the Evening Standard, tweeted that there were shouts of "knife knife knife" and a man was brought down with a Taser. Scotland Yard said the man - aged in his 30s - was arrested on suspicion of possessing a knife.
This breaking news story is being updated and more details will be published shortly. Please refresh the page for the fullest version. He was held with his arms against his back just yards from the forecourt of the building, where PC Keith Palmer was stabbed to death by terrorist Khalid Masood in March.
If you want to receive Breaking News alerts via email, or on a smartphone or tablet via the BBC News App then details on how to do so are available on this help page. You can also follow @BBCBreaking on Twitter to get the latest alerts. BBC deputy political editor John Pienaar said the latest incident ended very swiftly with the man being taken away in a police van.
While the gates are closed, the road and pavement opposite remained open and the incident had no affect on traffic in Parliament Square, he said.
Security around Westminster was tightened following the attack by Masood, who was shot dead after fatally stabbing PC Palmer as he guarded Carriage Gate.
A review of security at the perimeter of the parliamentary estate was ordered by Commons Speaker John Bercow following the incident.
The use of armed officers and physical barriers have become more visible, while a permanent barrier has been erected to protect pedestrians on Westminster Bridge, where Masood murdered four people and injured more than 50 others by mounting the pavement in a car.