Major boost for Jeremy Corbyn as Labour takes nine point poll lead amid Brexit deadlock
Labour has grabbed a nine point poll lead over the Conservatives amid growing fury over the Brexit deadlock.
The general election survey from Kantar put Jeremy Corbyn's party on 34%, down one point since April.
But support for the Tories has slumped by seven points to 25%.
Leave-backing supporters appear to have deserted the Conservatives in favour of Nigel Farage's new Brexit Party, which clinched 10% of the vote in the poll despite not being formally listed.
Instead, respondents were asked to name the party they would be voting for if they chose the "other" option, meaning support for Mr Farage's group is likely to be higher.
Meanwhile, the Lib Dems continued their recent resurgence, with a four-point boost in support putting them on 15%.
However, Change UK's problems continued, with the poll showing support for them at just 1%.
The results are the latest headache for Theresa May who is facing a mauling when voters go to the polls for European elections later this month.
A recent YouGov poll put them in fifth place on just 10%, compared to the Brexit Party on 34%.
Meanwhile, the Kantar poll found almost half of all voters (47%) supported putting any final Brexit deal to a referendum, down four points on last month.
The poll also found that remaining in the EU or revoking Article 50 continued to be the favoured option for solving the Brexit deadlock with a 3% increase in support to 36%.