Andy Burnham will become the UK's prime minister today, replacing Keir Starmer.
Starmer will deliver his final address as PM shortly, before he and Burnham visit King Charles in Buckingham Palace.
The new prime minister will then give his own speech in Downing Street - he will promise "more breathing room" for Britain, while arguing for a more "stable and responsible" politics.
Burnham became Labour leader on Friday.
Once Burnham is in office, he will begin hiring and firing ministers - prisons minister Lord Timpson resigned this morning.
Downing Street is packed with media this morning ahead of the change of prime ministers.
Extra safety measures have been put into place, including metal barriers outside the gates of Downing Street and a Metropolitan Police ban on using loud speakers in the area.
Veteran anti-Brexit activist Steve Bray - who blasted loud music outside Downing Street during Keir Starmer’s speech last month - has instead turned up outside Buckingham Palace.
He tells the BBC he won’t play any music as Starmer and Burnham arrive at the Palace.
Andy Burnham will undertake a summer tour across the UK during the early weeks of his premiership.
Described as a "listening tour" of the UK, Burnham will travel across the country in August while Parliament breaks for the summer.
Among the areas understood to be on his itinerary is Port Talbot in south Wales, a town which saw the closure of its last steel-making blast furnace in September 2024.
The former Greater Manchester mayor will become prime minister later today but will not face MPs until September when the Commons returns from its six-week recess, unless he decides to recall Parliament.
Several Welsh Labour MPs have told BBC Wales that they understand Burnham intends to visit Port Talbot, once home to the UK's largest steelworks which has seen 2,800 job losses as it transitions to greener steel-making.
