The Welsh secretary has said he expects to lose his seat, as an exit poll suggested Labour is set to win a general election landslide with a majority of 170.

David TC Davies, who has represented Monmouthshire since 2005, told BBC Wales that he will not be in Parliament at the end of the night.

If the exit poll, for the BBC, ITV and Sky, is accurate, Sir Keir Starmer will become prime minister with 410 Labour MPs – just short of Tony Blair’s 1997 total.

The Conservatives are predicted to slump to 131 MPs, their lowest number in post-war history, with Plaid Cymru forecast to win four seats.

Mr Davies, whose seat is now called Monmouthshire – a change from Monmouth – is after boundary changes, would be the first Welsh secretary to lose his seat since the post was created in 1964.

He said that based on the exit poll, “there isn’t a chance” that his party would win, “which is disappointing,” he said.

“But, you know, I’ve had great support from the local association, but the fact is, people wanted a change. That’s the way it goes in democracy.

“I’ll be the first to acknowledge there’s going to be a massive Labour victory and I certainly won’t be in Parliament at the end of the evening and I’ll put that on the record.”