Alarm and use of stun gun
An alarm was sounded when a man was stopped outside the House of Commons in London by armed police.
Photographs show the man lying on the ground, with three police officers holding him with their hands on his back and another pointing a gun at him.
One of the police officers used his stun gun.
The incident allegedly took place at the same gate, outside the British Parliament, where the attack in Westminster took place almost a year ago.
An intruder at the main gates of Parliament has been arrested by police pic.twitter.com/RCppdv44gz- EJ Ward (@EJWardNews) December 11 2018