A KNIFEMAN was Tasered just yards from Downing Street today after "confronting" two cops.
Police swooped on Horse Guards Parade in central London just before 9am as the drama unfolded.
The 29-year-old suspect approached two Ministry of Defence police officers while brandishing a knife.
He was Tasered and restrained before any injuries were reported.
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The suspect is now being quizzed on suspicion of attempted murder and possession of an offensive weapon and remains in custody.
Police confirmed the incident is not being treated as terror related.
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A probe has now been launched with the Met working closely with the MOD.
CCTV footage shows cops at the scene close to Trafalgar Square around 10.36am.
Forensic officers have since been seen putting items into clear plastic bags as they comb for evidence.
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An EOD - a bomb disposal advice - was also spotted at the scene.
A number of government buildings - including the Ministry of Defence (MoD)- are at Horse Guards.
The area is also a stone's throw from 10 Downing Street and the Cabinet Office.
Whitehall roads were closed between Trafalgar Square and Parliament Square as officers responded to the incident this morning.
A Met Police spokesperson said: "At around 08:50hrs, a 29-year-old man, who was armed with a knife, confronted two Ministry of Defence Police officers.
"[A] Taser was deployed and the man was restrained by officers. There were no reports of any injuries.
"An investigation is under way. Met officers will continue to liaise closely with the Ministry of Defence Police as it progresses."
Anyone with information has been asked to call police on 101 quoting reference 1730/18APR.