The founder of a Remain-supporting campaign group that is seeking to overturn Brexit has accused the organisation of being "undemocratic" and said it must disclose its financial backers.

Gina Miller, who founded Best for Britain, said the public has a "right to know" who is backing the organisation as she criticised its tactics.

Her intervention comes after The Telegraph disclosed that George Soros, the billionaire known as the man who "broke the Bank of England", is backing the campaign.

The group is trying to recruit major donors in an attempt to undermine Theresa May. It also plans to target MPs and convince them to vote against the final Brexit deal in a bid to trigger a second referendum or another election.

Ms Miller told The Telegraph: "When I read the coverage I pulled back and thought this is not where I think this should be going. It was a good decision to part ways.