Momentum swinging back to 'In' camp ahead of UK's EU vote: YouGov

"We are now in the final week of the referendum campaign and the swing back towards the status quo appears to be in full force," Anthony Wells, a YouGov director, said in a blog post.

Separately, another poll published on Saturday and conducted by Survation, another polling firm, showed the campaign for Britain to stay in the EU had taken a three-point lead over the rival "Out" camp.

(Writing by William Schomberg, editing by Paul Sandle)