Beaconsfield MP Dominic Grieve said he could leave the Conservative party if the government backed a no-deal Brexit.

Both Labour and the Conservatives are braced for further walkouts as the creation of a new independent grouping of MPs continues to rip through the political landscape.

As members of The Independent Group (TIG) said they expected to see more MPs join them, it emerged that former attorney general and Bucks MP Mr Grieve could be tempted to leave the Tories.

Mr Grieve told the BBC: "I can't predict where I might be if the party goes completely off the rails - that's another matter."

He added: "The government which I am supporting implementing a no-deal Brexit - what would I do? I would not be able to maintain my support of the government. I would have to leave the party."

The defections of Ms Soubry, Ms Allen and Sarah Wollaston from the Tories took the number of TIG MPs to 1