Live Updates: UK MPs Continue Debates as Johnson Launches New Bid to Push for Vote on Brexit Deal

"Despite having told the British public over and over again he would never do it, the letter has in fact been sent. The extension allows this House the space to scrutinise the prime minister's Brexit deal", Corbyn said.

"This was sent in compliance with section 1 of the Benn Act," Brexit Secretary Steve Barclay said. "The president of the European Council has accepted the request as valid and indicated he is considering it and consulting with member states." 

"There are two issues: one of substance, the other of circumstance. Today's motion seeks approval for same things as Saturday's. It is clear the motions are in substance the same. This matter was decided fewer than 49 hours ago", said John Bercow, Speaker of the lower house.

"My starting point is that agreeing the Withdrawal Agreement is self-evidently in our economic interest. It would bring an end to the damaging uncertainty and delay of the past years, and allow businesses to get on with taking decisions, including around recruitment and investment", finance minister Sajid Javid said in the letter.

Barclay explained that the risk remains because the EU has not agreed to a delay and the House of Commons has not agreed the deal.

No one wants another delay to Brexit, a French diplomatic source said on Saturday, after UK lawmakers passed an amendment calling for Boris Johnson to ask for another Brexit postponement.

“We have made very clear to Boris Johnson and to the others there that we are happy to do a deal very quickly with the UK'', Ross said on Monday.

"We are clear where we stand on the customs union as something that we cannot support and will not support, and I believe that that will be the stance we will have later on when we see the wording", Democratic Unionist Party legislator Jim Shannon said.

France's Secretary of State for European Affairs Amélie de Montchalin announced on Monday that the EU can't be paralysed over uncertainty related to Brexit. She noted that the current status is even more unclear than the no-deal scenario, which poses numerous dangers to the bloc.