Britain's new Prime Minister Keir Starmer has pledged to use his massive electoral majority to rebuild the country.

Speaking outside his new office and residence at Number 10 Downing Street, Keir Starmer acknowledged the scale of the challenge after his party's landslide victory in a parliamentary election ended 14 years of often tumultuous Conservative government.

He said he would fight every day to rebuild trust, saying Britain would have a government unburdened by doctrine, underlining that he would put country first, party second.

On the other hand, Rishi Sunak has conceded defeat in the general elections.