A typical Changing of the Guard ceremony outside Buckingham Palace yesterday morning was briefly interrupted by a man waving around two large knifes and ranting unintelligibly.
Police say 54-year-old Talhat Rehman of North West London was standing among ceremony onlookers when he suddenly burst forward and began gesturing towards his own neck and chest with a pair of knives.
An officer eventually managed to seize a moment of distraction, and fired a Taser barb into Rehman's back, sending him to the ground. He was quickly subdued, and the drama concluded without incident.
"He was not making threats to members of the public but he was challenged by police. He acted aggressively and a Taser was discharged," a Scotland Yard spokesman said in a statement. Rehman was charged with two counts of possessing a bladed weapon in public, and one count of affray.