A Labour candidate for the Welsh Assembly claims his Tory opponent said homosexuality is a sin at a public meeting.
Conservative leader David Cameron has defended the party’s candidate in Clywd West, Darren Millar, claiming his remarks have been taken out of context.
“He’s already clarified and made clear that we should not discriminate against people on the ground of their sexuality,” Mr Cameron told the BBC.
“That is the position of the Conservative Party, we’re a party that doesn’t believe in discrimination.”
The Tory leader is campaigning in Wales ahead of elections for the 60-member Assembly next Thursday.
A party spokesman told the BBC that Mr Millar was merely pointing out that religious texts say homosexuality is a sin.
Labour candidate Alan Pugh said: “How on earth could any constituent, a gay man or a lesbian, approach him for help on an issue such as housing if Mr Millar carries around this prejudice?”
Mr Millar has also been accused by Mr Pugh of telling the meeting in Ruthin that faith-based theories of evolution should be taught in science lessons.
Tory officials said Mr Millar meant that schools should be allowed to have some choice over whether or not to include creationism in the curriculum.