A man's been tasered by police outside Buckingham Palace.
It happened just before noon today.
The Queen and Prince Philip were at Sandringham at the time of the incident.
A Buckingham Palace spokeswoman said they would not comment as it was a police matter.
The scene was cordoned off with police tape 30 metres from the palace gates.
Inside the cordoned-off area lay two knives with six-inch blades and a pair of Nike high top trainers.
Taser wire also lay on the ground.
– Metropolitan Police spokesman
It was approximately 11.50. A man was seen outside the centre gate in possession of two knives.
He was not making threats to members of the public but he was challenged by police.
He acted aggressively and a taser was discharged.
He is thought to be in his fifties. He was arrested on suspicion of affray and has been taken to a central London police station.
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