Britain has its third new prime minister this year.
Rishi Sunak has replaced Liz Truss in Number 10. Here, in pictures, is how the day unfolded.
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Liz Truss and her cabinet on her final day in office
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It is traditional for Downing Street staff to give applause as a PM leaves Number 10
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A removal van arriving on Tuesday morning
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Deputy Prime Minister Therese Coffey takes a selfie
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Liz Truss turns away from the lectern
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Liz Truss’s husband Hugh O’Leary and daughters Frances and Liberty
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Liz Truss arriving at Buckingham Palace
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Rishi Sunak arriving to meet the King not long after his predecessor’s departure
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King Charles greets the new prime minister
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Rishi Sunak arriving in Downing Street as prime minister
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Rishi Sunak greeting Cabinet Secretary Simon Case as he enters Downing Street