A group of protesters was dragged off the Mall by police after they ran in front of a parade as the Queen’s Platinum Jubilee celebrations started.
The five men, some wearing plastic crowns, were seen jumping the barriers lining the Mall leading up to Buckingham Palace at 10.10am on Thursday.
Some of them lay down on the ground in front of a troop of guardsmen who were parading up the Mall ahead of Trooping the Colour for the Jubilee.
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One man was holding a placard as he marched in front of the soldiers, while the guardsmen continued to march around the protesters on the ground.
Police officers quickly grabbed the men and dragged them to the side of the road.
The protest came moments before members of the Royal Family were driven down the Mall. The Queen was in Buckingham Palace at the time.
Protest group Animal Rebellion claimed they were responsible and said they were “demanding that Royal Land is Reclaimed”.
The Met Police tweeted shortly after the incident: “A number of arrests have been made of people who attempted to enter the ceremonial route in The Mall at approximately 10.10hrs today.”
The Queen, who is 96 years old, is staying in Buckingham Palace for this year’s Trooping the Colour, which celebrates her birthday, but in past years she has taken part.
In 1981 she was riding her horse down the Mall during the procession when 17-year-old Marcus Sarjeant fired six blank shots at the Queen.
She remained suitably calm as police wrestled him to the ground. He was jailed for five years under the 1842 Treason Act, which had not been used since 1966.
Four months later on 14 October 1981 another 17-year-old, John Lewis, fired a rifle from an empty building at the Queen and Prince Philip in Dunedin, New Zealand, as they got out of a Rolls-Royce.
Lewis missed the Queen and was placed in a psychiatric hospital, from where he tried unsuccessfully to escape two years later to assassinate Prince Charles, who was visiting the country.