The United Kingdom Prime Minister, Liz Truss has resigned after spending just 45 days in office.

Her resignation comes after a key minister quit and Tory MPs rebelled in a chaotic parliamentary votes, BBC reports.

She announced her resignation on Thursday, and confirmed a leadership election to decide the UK’s next prime minister will be completed within a week.

“I came into office at a time of great economic and international instability,” she said. “Families and businesses were worried about how to pay their bills.”

Ms Truss added that she was elected “with a mandate to change this” – saying: “We delivered on energy bills, and on cutting National Insurance.”

She says she now recognises she “cannot deliver the mandate” on which she was elected – “given the situation”.