LIVE: Boris Johnson in desperate bid to save his premiership after being rocked by resignations - latest updates

Boris Johnson faces a desperate bid to save his premiership after the dramatic resignations of Rishi Sunak as chancellor and Sajid Javid as health secretary.

The Prime Minister was also rocked by a series of government exits last night, threatening to force him out of No 10. Mr Sunak and Mr Javid both quit just Mr Johnson was being forced into a humiliating apology to address the row over scandal-hit former deputy chief whip Chris Pincher.

The pair were swiftly replaced on Tuesday night, with Nadhim Zahawi promoted to be the new Chancellor and Steve Barclay becoming Health Secretary. Mr Sunak and Mr Javid, both potential leadership rivals, offered sharp criticisms of Mr Johnson in their resignation letters.

READ MORE: Rishi Sunak and Sajid Javid's devastating resignation letters to Boris Johnson in full

Mr Sunak said 'the public rightly expect government to be conducted properly, competently and seriously', adding: "I believe these standards are worth fighting for and that is why I am resigning." Mr Javid said the British people 'expect integrity from their government' but voters now believed Mr Johnson’s administration was neither competent nor 'acting in the national interest'.

Tory former Brexit minister Lord David Frost supported their resignations, noting they had done so after he similarly stepped down in December. The Prime Minister’s fate may now ultimately lie with backbench MPs if the Tory 1922 Committee’s rules are changed to allow another confidence vote within 12 months.

Allies of Mr Johnson believe that is unlikely as it would leave any future leader with a 'gun to their head'. Today, Mr Johnson will endure a grilling from MPs on all sides of the House at Prime Minister’s Questions, while later he will be