Has legendary street artist Banksy finally been unmasked?
William Kasper says he spotted the graffiti star, whose name and identity have never been released, in Bethlehem in 2007.
At the time, Banksy was hosting an exhibition in the holy Palestinian city called Santa's Ghetto.
The sensational images come days after a woman photographed the same man armed with a paint roller, also in Bethlehem.
Banksy recently launched The Walled Off Hotel, a guest house in the West Bank.
Members of the public identified the man in the image as as British street artist James Ame, also known as 'Ame72'.
But Kasper claims Ame72 is Banksy – and says he is one of four artists who assume the star's identity.
The photo was apparently taken at a checkpoint in Bethlehem Could this man be the REAL Banksy? Tue, April 11, 2017 William Kasper / SWNS.com 1 of 8
William Kasper says he took this picture of the graffiti king in Bethlehem in 2007
This second shot seems to show Banksy graffitiing the West Bank
The man in both photographs is one of the Banksy members
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He said: "The man in both photographs is one of the Banksy members and hides behind the artist name James Ame or Ame72.
"He is the same man filmed last week in Herzliya Marina, Israel.
"Ame fits the profile perfectly – a long term graffiti artist from the 80s turned gallery and street artist."
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"I never believed Banksy was one person. The body of work over the last 10 years is too large for one person to accomplish.
"This proves the group use different artist names as a cover and all collective members are hiding in plain view.
"Whoever came up with that idea is a genius."
Banksy hides behind the name James Ame, according to William Kasper
Kasper said his two photos were taken in Bethlehem on the same day in December 2007.
The same year, Banksy took the Santa's Ghetto gallery from London to the Christian pilgrimage destination.
Banksy attracted more than 30 artists to the gallery and created an art trail around the city, graffitiing the West Bank.
The iconic artist recently launched a hotel in the West Bank
Kasper said: "The first photo was taken from a car window on the main road through Bethlehem.
"The second photo was taken as we approached the main checkpoint leaving Bethlehem later that day."
Ame72 has yet to respond to requests for comment.