SADIQ KHAN won re-election as mayor of London with the smallest mandate since the post was created 24 years ago, analysis by the Electoral Reform Society (ERS) shows.

Mr Khan received 43.8 per cent of Thursday's vote, securing him a third term in office.

Last week’s local elections in England and Wales were the first time that first past the post (FPP), rather than the supplementary vote (SV) system, had been used in many mayoral contests.