Liz Truss said on Thursday she was resigning as British prime minister, brought down by her economic programme that sent shockwaves through the markets and divided her Conservative Party just six weeks after she was appointed.

Liz Truss

A leadership election will be completed within the next week to replace Truss, who is the shortest serving prime minister in Britain's history. George Canning previously held the record, serving 119 days in 1827, when he died.

Below is the full text of her speech in Downing Street:

"I came into office at a time of great economic and international instability. Families and businesses were worried about how to pay their bills, Putin's illegal war in Ukraine threatens the security of our whole continent and our country has been held back for too long by low economic growth.

"I was elected by the Conservative Party with a mandate to change this. We delivered on energy bills and on cutting National Insurance. And we set out a vision for a low tax, high growth economy that would take advantage of the freedoms of Brexit.

"I recognise though, given the situation, I cannot deliver the mandate on which I was elected by the Conservative Party. I have therefore spoken to His Majesty the King to notify him that I am resigning as leader of the Conservative Party.

"This morning I met the chairman of the 1922 Committee, Sir Graham Brady. We've agreed that there will be a leadership election, to be completed within the next week. This will ensure that we remain on a path to deliver our fiscal plans and maintain our country's economic stability and national security.

"I will remain as prime minister until a successor has been chosen. Thank you."

Conservative lawmakers have increasingly called on Truss to step down after she was forced to junk most of her economic programme which when delivered on Sept. 23 sent the pound and government bond markets tumbling.

She drafted in former health minister Jeremy Hunt as her new finance minister to try to reset her administration, but on Wednesday her lawmakers turned on each other and another senior minister resigned, leaving Truss's authority in tatters.

Conservative lawmakers say her most likely successors are either her leadership rival, former finance minister Rishi Sunak, or Penny Mordaunt, who came third in the race to become the next prime minister just six weeks ago.