His representative also confirmed it was by Banksy.Dover and its white cliffs, which are seen by many people arriving in and departing from Britain every year, have loomed large in media coverage of Brexit.The British Sun newspaper, which campaigned for "leave," projected the message "Dover & out" on the cliffs on March 24, the day that British Prime Minister Theresa May triggered the start of Britain's exit from the EU.The latest work attributed to the elusive artist was uncovered after his Walled Off Hotel in Bethlehem, a quirky guesthouse that stands close to Israel's security barrier in the West Bank, opened in March. Set up in secrecy over 14 months, the hotel gained international media coverage.In a statement, Banksy's said that the hotel, the guerrilla artist's biggest project in two years, "offers a warm welcome to people from all sides of the conflict from across the world."