Arrest over knife incident in Whitehall

A man has been arrested after an incident in Whitehall, central London, close to Parliament. With security presence remaining strong following last month’s terrorist attack in Westminster, police detained the man on Parliament Street, with social media images showing a knife on the ground of the traffic island in the middle of the road. Police, who have taken the suspect into custody, said they are investigating the circumstances that led the man to attract the attention of officers.