For the first time since Britain voted to leave the European Union, more people now believe that the decision was a mistake, an opinion poll released Thursday said.
Asked "in hindsight, was Britain right or wrong to vote to leave the EU?", the YouGov poll in The Times newspaper found that 45% said wrong (up two), while 43% said right (down three).
"This is the first time that more people have said the referendum came out with the wrong result, and suggests that the issue still divides the country," The Times said.
In the June 2016 referendum, 52% voted for Britain to leave the EU.
YouGov found some 43% favour a so-called "hard Brexit" where Britain leaves the EU completely, while 36% backed a "soft Brexit" where Britain remains inside the European single market and retains open-borders EU immigration.
Some 39% said they thought Brexit would leave Britain economically worse off; 28% said they thought Britain would be better off; while 18% said it would make no difference.
YouGov surveyed 1,590 British adults online on Tuesday and Wednesday.
The poll compares with one released April 16 that said support for Brexit had hit a five-month high, with 55% backing Britain's exit from the EU. That survey, by research company Orb International, was published in the Sunday Telegraph newspaper.
Conservative Prime Minister Theresa May has called a snap general election for June 8 in a bid to strengthen her majority in parliament heading into the Brexit negotiations with Brussels.
In YouGov's general election voting intention poll, the Conservatives were on 45% (down three on April 20-21), Labour 29% (up four), the Liberal Democrats 10% (down two) and UKIP on 7% (up two).
Asked who would make the best prime minister, 48% said May (down six), 18% said opposition Labour leader Jeremy Corbyn (up three), while 33% said they were not sure.
Asked what the top general election issues were, four main themes emerged: Brexit (64%), health (47%), immigration (36%) and the economy (35%).