Nigel Farage’s right-wing populist party snatched a critical parliamentary seat from the governing Labour Party.

Britain’s populist, anti-immigration party Reform UK has beaten Labour by a tiny margin in a by-election, dealing the government a mid-term setback and ruffling the country’s historically resilient two-party hegemony.

Reform UK have won the Runcorn and Helsby by-election by just six votes, ousting Labour from what had been one of their safest seats.