Speaking from a lectern in Downing Street, Ms Truss said she had told the King she was resigning as the leader of the Conservative Party as she recognised she “cannot deliver the mandate” which Tory members gave her little over six weeks ago.
During her 44 full days in No 10, she oversaw the pound plummeting, the cost of government debt soaring and poll numbers skydiving before tearing up her “Trussenomics” plans.
She held talks with the chairman of the 1922 Committee of backbench Conservatives Sir Graham Brady and agreed to a fresh leadership election “to be completed within the next week”.
She said: “I will remain as Prime Minister until a successor has been chosen.”
We take a look at some of the images from her time as Prime Minister.
5. Liz Truss making a speech outside 10 Downing Street
Liz Truss making a speech outside 10 Downing Street, London, after meeting Queen Elizabeth II and accepting her invitation to become Prime Minister and form a new government. Picture; 06/09/2022 Photo: Victoria Jones
6. Prime Minister Liz Truss signing the Proclamation of Accession of King Charles III during the Accession Council ceremony at St James's Palace
Prime Minister Liz Truss signing the Proclamation of Accession of King Charles III during the Accession Council ceremony at St James's Palace, London, where King Charles III is formally proclaimed monarch. Picture; 10/09/2022 Photo: Kirsty O'Connor
7. Prime Minister Liz Truss speaking during the State Funeral of Queen Elizabeth II
Prime Minister Liz Truss speaking during the State Funeral of Queen Elizabeth II, held at Westminster Abbey, London. Picture; 19/09/2022 Photo: Frank Augstein
8. Laura Kuenssberg interviewing Prime Minister Liz Truss on the BBC1 current affairs programme, Sunday with Laura Kuenssberg
Laura Kuenssberg (left) interviewing Prime Minister Liz Truss on the BBC1 current affairs programme, Sunday with Laura Kuenssberg, as the Conservative Party annual conference gets underway at the International Convention Centre in Birmingham. Picture; 02/10/2022 Photo: Stefan Rousseau