Sunak's Tories lose two out of three seats in UK by-elections

Ed Davey has become the first party leader since Paddy Ashdown in the 1990s to win four by-elections (Danny Lawson/PA)

UK prime minister Rishi Sunak has suffered a double by-election defeat in safe Tory seats, with Labour and the Liberal Democrats both overturning majorities of about 20,000.

Labour won Selby and Ainsty and the Lib Dems took Somerton and Frome on sizable swings which will leave many Tory MPs looking nervously at their own majorities.