The "out" camp holds a one-point lead ahead of Britain's June 23 referendum on whether the country should remain in the European Union, according to a YouGov poll for The Times.
The poll said support for the "remain" option stood at 41 per cent, while 42 per cent intended to vote "leave", 13 per cent "did not know" and 4 per cent did not intend to vote.
The YouGov Times poll was conducted between April 25 and 26.
Earlier on Wednesday, a Survation poll put "remain" on 45 per cent, down one point since March, with "leave" up three points on 38 per cent and 17 per cent still undecided, down two points.
Survation interviewed 1003 adults across the UK by telephone from April 25-26.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
The polls come after US President Barack Obama entered the debate last week, cautioning Britons against leaving the 28-member bloc.
