Kwasi Kwarteng is no longer chancellor, the BBC understands.
It comes amid speculation Truss will today announce a U-turn on parts of the mini-budget.
It means Kwarteng is the second shortest-serving UK chancellor on record.
The shortest serving chancellor, Iain Macleod, died of a heart attack 30 days after taking the job in 1970.
Since 2019, the UK has had four chancellors, including Nadhim Zahawi who served the third shortest tenure with 63 days during a short-lived reshuffle under Boris Johnson, and Sajid Javid who served 204 days – the fourth shortest tenure since the Second World War.
Source: BBC