British Prime Minister Boris Johnson's Conservative Party has seen its lead narrow to 10 points over the opposition Labour Party, according to a poll by Panelbase released on Friday, the first time the lead has shrunk in one of its recent surveys.
The Conservatives were on 42%, down one point from the pollster's survey last week, with Labour on 32%, up 2 points.
The Liberal Democrats were on 14%, down one point, and the Brexit Party was down two points to 3%. Britons go to the polls on Dec. 12.
In other news, Jeremy Corbyn said on Friday he would remain neutral in any second Brexit referendum, so he could credibly carry out the result of the vote and unite the country.
Corbyn, 70, is vying to become prime minister at a Dec. 12 election called by his Conservative rival, the current Prime Minister Boris Johnson, to resolve a deadlock in parliament over the right approach to leaving the European Union.
While Johnson wants to implement a deal he has already agreed with Brussels and leave the EU in January, Labour is promising to negotiate a new exit deal and put it to the public at a second referendum next year.
"I will adopt as prime minister, if I am, at the time, a neutral stance so that I can credibly carry out the results of that (referendum) to bring our communities and country together, rather than continuing an endless debate about the EU, and Brexit," Corbyn said during a televised question and answer session on BBC TV.
Previously, Corbyn has said his party's position would be determined by a special party conference on the issue.
Brexit divides many within Labour, with some senior figures angering eurosceptic grassroots members by saying openly they would campaign to remain in the EU.
"I don't see how you can do a deal when you say you are going to be neutral or indifferent about the deal," Johnson said during a later appearance on the same show.