A man has been arrested outside Buckingham Palace after being seen walking toward the Queen's official London residence allegedly wielding an axe.
A witness tweeted that he was arrested by six armed police.
A spokesperson for the Metropolitan Police said a suspect in his 40s was arrested on suspicion of carrying an offensive weapon.
The Queen is not currently at the palace.
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Advertise with NZME.The police said there are no reports of injuries and the man was taken to Charing Cross police station for questioning.