Theresa May has insisted the option of walking away from talks with Brussels without a deal must remain on the table as Tory MPs accused Jeremy Corbyn of being prepared to capitulate to the EU.

The Prime Minister stuck to her mantra that "no deal is better than a bad deal", insisting the UK would not be prepared to accept terms with Brussels "at any price".

Her comments came as Suella Fernandes, chairwoman of the European Research Group of Leave supporting MPs, wrote to the Labour leader calling on him to "clarify" the Opposition's stance on the possibility of a no deal scenario when Britain withdraws from the EU.

Ms Fernandes asked the Labour leader if his party would accept any deal offered by the EU, including one involving free movement of people, contributions to Brussels and a commitment to follow single market rules.

Labour leader Jeremy Corbyn delivers his speech at the Labour Party annual conference at the Brighton Centre, Brighton.

The letter, which is co-signed by 18 other MPs, states: "We are significantly concerned that your refusal to countenance planning for a 'no deal' will do material harm to Britain's negotiating position in the discussions about our exit from the European Union.

"There are those in the EU for whom the sole priority in these negotiations is that they punish Britain: your policy would give them strength."

Ms Fernandes said ruling out a no deal scenario deprived the UK of leverage in the withdrawal talks and amounted to a "betrayal of the national interest".

Tory MP Philip Davies said Labour and the SNP's position of ruling out a "no deal" scenario was "not a negotiation, it's a capitulation".

In the Commons, Mrs May agreed with him, adding: "You don't enter negotiations by taking the stance that the Labour Party and the SNP have taken, because ... their rejection of a 'no deal' means that they will accept a deal at any price to the British taxpayer, whatever the damage that will do to our economy and we will not do that."