Prime Minister Theresa May has found herself in the middle of a bizarre internet conspiracy theory involving claims of a secret EU Illuminati society.

Mrs May used the hand signal - already frequently used by German Chancellor Angela Merkel and European Commission President, Jean-Claude Juncker - on July 11 when speaking at Westminster before her elevation to 10 Downing Street.

The hand signal is listed on the illuminati hand signs conspiracy theory website illuminatiRex and described as a 'Merkel-Raute'.

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Prime Minister Theresa May used the hang signal after Andrea Leadsom pulled out of the Tory leadership contest outside the Houses of Parliament on July 11

The 'Merkel-Raute' is a reverse variation of the first illuminati 'Roc Sign' - roughly in the shape of a diamond or pyramid - used by celebrities such as actors, Denzel Washington, Ben Stiller and Tom Cruise

Users of the 'Merkel-Raute', as it has become known due to the German's frequent use, have also included other European historical figures including Pope John Paul II and Adolf Hitler.

'The pyramid is an important Illuminati symbol showing their few ruling the many on the bottom type power structure,' the illuminatiRex website states.

German Chancellor Angela Merkel used the signal in Hamburg on February 12 when meeting with David Cameron when he was prime minister

Mrs Merkel used the hand gesture again on March 9 in Berlin

German Chancellor Angela Merkel used the signal in Frankfurt am Main on May 20

Mrs Merkel attended an event in Berlin on April 12 where she used the gesture again

Mrs Merkel was at it again at an industrial trade fair in Hanover on April 25

'The symbol becomes more powerful when the sign is done over an eye, representing the All-Seeing eye in a capstone floating over an unfinished pyramid.'

'The pyramid sign is seen by many researchers to be THE sign of the Illuminati.'

Mr Juncker was captured using the 'Merkel-Raute' signal this week when he met Belgium royalty on Friday.

But he had also used it on July 7 in Strasbourg, France.

German politician Memet Kilic had noticed the similarities between Mrs May and Mrs Merkel, describing the new PM as a 'competitor' in hand gestures against the German.

Jean-Claude Juncker, President of the European Commission, is also a fan of the hand signal