Police officers were patrolling The Mall, in London, at around 6.30pm today when they saw a man carrying an axe. Armed officers, who were on duty nearby, attended the scene.
The man, believed to be in his 40s, was detained and arrested on suspicion of carrying an offensive weapon.
He was taken to Charing Cross Police Station for questioning.
There are currently no reports of any injuries but enquires continue.
More to follow…