Touchdown for Biden in UK as he meets Rishi Sunak and Charles ahead of Nato summit

The president is likely to raise his concerns over post-Brexit challenges to the peace process in Northern Ireland during their fifth meeting in as many months, a US official said.

US president Joe Biden arrives on Air Force One at Stansted Airport (Joe Giddens/PA)

Joe Biden has arrived in the UK for discussions on Ukraine with Rishi Sunak, before joining Britain's King Charles for tea and talks on the climate crisis at Windsor Castle.

Air Force One touched down at London Stansted on Sunday evening before the pomp and politics gets under way during the US president’s layover on the way to the Nato summit in Lithuania.