British Prime Minister Liz Truss on Wednesday defied calls from opposition lawmakers to resign after having U-turned on her proposed economic plans, saying she was a "fighter" and not a "quitter."

Responding to a question from opposition Labor Party leader Keir Starmer in parliament on why she should remain in power, Truss said: "I am a fighter and not a quitter."

"I have acted in the national interest to make sure that we have economic stability."