Police foil terrorist plot targeting Queen Elizabeth II

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Police foil terrorist plot targeting Queen Elizabeth II
LONDON, UNITED KINGDOM - NOVEMBER 09: Queen Elizabeth II attends the annual Remembrance Sunday Service at the Cenotaph on Whitehall on November 9, 2014 in London, United Kingdom. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, UNITED KINGDOM - NOVEMBER 09: Camilla, Duchess of Cornwall and Catherine, Duchess of Cambridge with Sophie Rhys-Jones, Countess of Wessex attend the annual Remembrance Sunday Service at the Cenotaph on Whitehall on November 9, 2014 in London, United Kingdom. (Photo by Mark Cuthbert/UK Press via Getty Images)
Britain's Prince William, Duke of Cambridge (C) stands with Prince Philip, Duke of Edinburgh (R) and Britain's Prince Edward, Earl of Wessex (L) as he attends the Remembrance Sunday ceremony at the Cenotaph on Whitehall, London, on November 9, 2014. Services are held annually across Commonwealth countries during Remembrance Day to commemorate servicemen and women who have fallen in the line of duty since World War I. AFP PHOTO / JUSTIN TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
Britain's Prince Harry salutes after he placed a cross of remembrance in front of two wooden crosses from the graves of unknown British soldiers from the first and second World Wars, as he visited the Westminster Field of Remembrance in London, Thursday, Nov. 6, 2014. (AP Photo/Kirsty Wigglesworth)
LONDON, UNITED KINGDOM - NOVEMBER 09: Queen Elizabeth II attends the annual Remembrance Sunday Service at the Cenotaph on Whitehall on November 9, 2014 in London, United Kingdom. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, UNITED KINGDOM - NOVEMBER 09: Queen Elizabeth II attends the annual Remembrance Sunday Service at the Cenotaph on Whitehall on November 9, 2014 in London, United Kingdom. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, UNITED KINGDOM - NOVEMBER 09: Queen Elizabeth II and Prince Philip, Duke of Edinburgh attend the annual Remembrance Sunday Service at the Cenotaph on Whitehall on November 9, 2014 in London, United Kingdom. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, UNITED KINGDOM - NOVEMBER 09: Prince William, Duke of Cambridge attends the annual Remembrance Sunday Service at the Cenotaph on Whitehall on November 9, 2014 in London, United Kingdom. (Photo by Mark Cuthbert/UK Press via Getty Images)
Members of the British royal family led by Queen Elizabeth II, politicians and members of the armed forces, the clergy and foreign diplomats gather around the Cenotaph during the Remembrance Sunday ceremony on Whitehall, London, on November 9, 2014. Services are held annually across Commonwealth countries during Remembrance Day to commemorate servicemen and women who have fallen in the line of duty since World War I. AFP PHOTO / JUSTIN TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
LONDON, UNITED KINGDOM - NOVEMBER 09: Camilla, Duchess of Cornwall and Catherine, Duchess of Cambridge attend the annual Remembrance Sunday Service at the Cenotaph on Whitehall on November 9, 2014 in London, United Kingdom. (Photo by Mark Cuthbert/UK Press via Getty Images)
The London eye is lit up red reflected in the river Thames in the early morning on Remembrance Sunday in central London on November 9, 2014. Queen Elizabeth was to lead Britain in paying silent tribute to the Commonwealth war dead on Remembrance Sunday, a century on from the start of World War I. The 88-year-old monarch was to lay a wreath at the Cenotaph national war memorial in London, accompanied by senior members of the royal family and prime ministers past and present. AFP PHOTO / JUSTIN TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
Britain's Queen Elizabeth II leads the Remembrance Sunday ceremony at the Cenotaph on Whitehall, London, on November 9, 2014. Services are held annually across Commonwealth countries during Remembrance Day to commemorate servicemen and women who have fallen in the line of duty since World War I. AFP PHOTO / JUSTIN TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
LONDON, UNITED KINGDOM - NOVEMBER 09: Camilla, Duchess of Cornwall and Catherine, Duchess of Cambridge attend the annual Remembrance Sunday Service at the Cenotaph on Whitehall on November 9, 2014 in London, United Kingdom. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, UNITED KINGDOM - NOVEMBER 09: Prince William, Duke of Cambridge attends the annual Remembrance Sunday Service at the Cenotaph on Whitehall on November 9, 2014 in London, United Kingdom. (Photo by Mark Cuthbert/UK Press via Getty Images)
Britain's Prince Harry places a cross of remembrance in front of two wooden crosses from the graves of unknown British soldiers from the first and second World Wars, as he visited the Westminster Field of Remembrance in London, Thursday, Nov. 6, 2014. (AP Photo/Kirsty Wigglesworth)
Britain's Prince Harry smiles as he meets veterans from past and more recent conflicts, as he visited the Westminster Field of Remembrance in London, Thursday, Nov. 6, 2014. (AP Photo/Kirsty Wigglesworth)
Britain's Prince Harry meets veterans from past and more recent conflicts, as he visited the Westminster Field of Remembrance in London, Thursday, Nov. 6, 2014. (AP Photo/Kirsty Wigglesworth)
Britain's Prince Harry places a cross of remembrance in front of two wooden crosses from the graves of unknown British soldiers from the first and second World Wars, as he visited the Westminster Field of Remembrance in London, Thursday, Nov. 6, 2014. (AP Photo/Matthew Lloyd, Pool)
A leaf lies on crosses planted by The Royal British Legion in a Field of Remembrance, after heavy rain in London, Monday, Nov. 3, 2014. The Westminster Field of Remembrance outside Westminster Abbey, pays tribute to all the men and women who have served in the Armed Forces since the First World War, it will be officially opened on Nov. 6. (AP Photo/Kirsty Wigglesworth)
Crosses are seen planted by The Royal British Legion in a Field of Rememberence, after heavy rain in London, Monday, Nov. 3, 2014. The Westminster Field of Remembrance outside Westminster Abbey, pays tribute to all the men and women who have served in the Armed Forces since the First World War, it will be officially opened on Nov. 6. (AP Photo/Kirsty Wigglesworth)
LONDON, ENGLAND - NOVEMBER 06: Prince Harry visits the Field of Remembrance at Westminster Abbey on November 6, 2014 in London, England. (Photo by Samir Hussein/WireImage)
LONDON, ENGLAND - NOVEMBER 06: Prince Harry greets veterans and servicemen during a visit to the Field of Remembrance at Westminster Abbey on November 6, 2014 in London, England. The first Field of Remembrance was held in the grounds of Westminster Abbey in November 1928. That year only two Remembrance Tribute Crosses were planted, but it began a tradition that took root and has grown and grown over the decades. (Photo by Matthew Lloyd - WPA Pool /Getty Images)
LONDON, ENGLAND - NOVEMBER 06: Prince Harry greets veterans and servicemen during a visit to the Field of Remembrance at Westminster Abbey on November 6, 2014 in London, England. The first Field of Remembrance was held in the grounds of Westminster Abbey in November 1928. That year only two Remembrance Tribute Crosses were planted, but it began a tradition that took root and has grown and grown over the decades. (Photo by Matthew Lloyd - WPA Pool /Getty Images)
LONDON, ENGLAND - NOVEMBER 06: Prince Harry pauses in front of a Cross of Remembrance during a visit to the Field of Remembrance at Westminster Abbey on November 6, 2014 in London, England. The first Field of Remembrance was held in the grounds of Westminster Abbey in November 1928. That year only two Remembrance Tribute Crosses were planted, but it began a tradition that took root and has grown and grown over the decades. (Photo by Matthew Lloyd - WPA Pool /Getty Images)
LONDON, ENGLAND - NOVEMBER 06: Prince Harry greets veterans and servicemen during a visit to the Field of Remembrance at Westminster Abbey on November 6, 2014 in London, England. The first Field of Remembrance was held in the grounds of Westminster Abbey in November 1928. That year only two Remembrance Tribute Crosses were planted, but it began a tradition that took root and has grown and grown over the decades. (Photo by Matthew Lloyd - WPA Pool /Getty Images)
King Philippe of Belgium lays a wreath of poppies during the opening of the new Flanders Field WW1 Memorial at the Wellington Barracks in London, on November 6, 2014. The Flanders Fields Memorial Garden has been created with soil taken from the 70 battlefields and Commonwealth War Grave Cemeteries in Flanders, Belgium. AFP PHOTO / JOHN STILLWELL/POOL (Photo credit should read JOHN STILLWELL/AFP/Getty Images)
LONDON, ENGLAND - NOVEMBER 06: Prince Harry greets veterans and servicemen during a visit to the Field of Remembrance at Westminster Abbey on November 6, 2014 in London, England. The first Field of Remembrance was held in the grounds of Westminster Abbey in November 1928. That year only two Remembrance Tribute Crosses were planted, but it began a tradition that took root and has grown and grown over the decades. (Photo by Matthew Lloyd - WPA Pool /Getty Images)
LONDON, ENGLAND - NOVEMBER 06: Prince Harry salutes in front of a Cross of Remembrance during a visit to the Field of Remembrance at Westminster Abbey on November 6, 2014 in London, England. The first Field of Remembrance was held in the grounds of Westminster Abbey in November 1928. That year only two Remembrance Tribute Crosses were planted, but it began a tradition that took root and has grown and grown over the decades. (Photo by Matthew Lloyd - WPA Pool /Getty Images)
LONDON, UNITED KINGDOM - NOVEMBER 09: Catherine, Duchess of Cambridge, Camilla, Duchess of Cornwall and Sophie, Countess of Wessex attend the annual Remembrance Sunday Service at the Cenotaph on Whitehall on November 9, 2014 in London, United Kingdom. People across the UK gather to pay tribute to service personnel who have died in the two World Wars and subsequent conflicts, with this year taking on added significance as it is the centenary of the outbreak of World War One. (Photo by Chris Jackson/Getty Images)
Britain's Catherine, Duchess of Cambridge (L), watches proceedings next to Camilla, Duchess of Cornwall (R) from a balcony during the Remembrance Sunday ceremony at the Cenotaph on Whitehall, London, on November 9, 2014. Services are held annually across Commonwealth countries during Remembrance Day to commemorate servicemen and women who have fallen in the line of duty since World War I. AFP PHOTO / JUSTIN TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
LONDON, UNITED KINGDOM - NOVEMBER 09: Prince William, Duke of Cambridge salutes the Cenotaph as his wife Catherine, Duchess of Cambridge on a balcony above looks on during the annual Remembrance Sunday Service at the Cenotaph on Whitehall on November 9, 2014 in London, United Kingdom. People across the UK gather to pay tribute to service personnel who have died in the two World Wars and subsequent conflicts, with this year taking on added significance as it is the centenary of the outbreak of World War One. (Photo by Jamie Wiseman - WPA Pool/Getty Images)
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Four men between the ages of 19 and 27 were arrested in connection with multiple planned terrorist attacks, one of which involved attacking the queen with a knife, according to The Sun.

A report suggests she was targeted by radical Muslims, but police thwarted the suspects' plans with months of surveillance and multiple raids.

Officials made the queen and Prime Minister David Cameron aware of the incident, but despite the potential threat, her majesty still plans to make numerous public appearances.

Police Foil Terrorist Plot Targeting Queen Elizabeth II: Report

British police say they've disrupted an assassination attempt of Queen Elizabeth II.

On Sunday, she paid tribute during a Remembrance Day ceremony at a monument honoring the country's fallen soldiers and marking the 100th anniversary of the start of WWI.

In August, Britain raised its terror threat to "severe," the second-highest level, due to new intelligence regarding Islamic extremists.

The planned assassination attempt follows arrests of 13 men suspected of various terrorism offenses in recent months.

Scotland Yard is still investigating the most recent threat.

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