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Baroness Warsi said the fraud had stopped Tories winning at least three seats
The Conservatives failed to win an overall majority at the general election because of electoral fraud, Baroness Warsi has said.
The party chairman told the New Statesman that Labour benefited from the alleged fraud.
She said it happened with at least three seats but would not say where.
A Labour spokesperson said the allegations were "unsubstantiated" and urged Lady Warsi to share any evidence she had with the authorities.
Lady Warsi said: "It is predominantly within the Asian community."
The BBC tried to contact Lady Warsi about the allegations but she was unavailable.
Lady Warsi said she had written to Deputy Prime Minister Nick Clegg, who is overseeing the coalition government's electoral reforms, to discuss fraud and voter disenfranchisement.
A Conservative spokesman confirmed the party did have some concerns about a number of seats which it was looking into.
The Conservatives won 307 seats and 36.1% of the votes, while Labour won 258 seats and 29% of the votes.
The Liberal Democrats won 57 seats with a 23% share of the votes.
This article is from the BBC News website. ? British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites.

Baroness Warsi said the fraud had stopped Tories winning at least three seats The Conservatives failed to win an overall majority at the general election because of electoral fraud, Baroness Warsi has said.
The party chairman told the New Statesman that Labour benefited from the alleged fraud.
She said it happened with at least three seats but would not say where.
A Labour spokesperson said the allegations were "unsubstantiated" and urged Lady Warsi to share any evidence she had with the authorities.
Lady Warsi said: "It is predominantly within the Asian community."
The BBC tried to contact Lady Warsi about the allegations but she was unavailable.
Lady Warsi said she had written to Deputy Prime Minister Nick Clegg, who is overseeing the coalition government's electoral reforms, to discuss fraud and voter disenfranchisement.
A Conservative spokesman confirmed the party did have some concerns about a number of seats which it was looking into.
The Conservatives won 307 seats and 36.1% of the votes, while Labour won 258 seats and 29% of the votes.
The Liberal Democrats won 57 seats with a 23% share of the votes.
This article is from the BBC News website. ? British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites.

