David Lidington, the Cabinet Office minister and May's de facto deputy, and Gavin Barwell, May's chief of staff, have discussed holding a second referendum | Leon Neal/Getty Images British officials line up for second referendum: reports Senior members of Theresa May’s team are discussing another vote on EU membership, according to UK media.

LONDON — Theresa May, the British prime minister, faces renewed domestic pressure over Brexit after a series of high-profile U.K. politicians threw their support behind a second referendum, according to media reports.

David Lidington, the Cabinet Office minister and May's de facto deputy, and Gavin Barwell, May's chief of staff, have discussed holding a second referendum with both Labour MPs and other Cabinet ministers, the Sunday Times reported. The Guardian also said that other Conservative lawmakers were urging the embattled prime minister to offer MPs a so-called "free vote" on holding another plebiscite, or the right for politicians to vote how they believed rather than along party lines.

The reports, although unconfirmed, will ratchet up pressure on May, who has so far failed to garner meaningful concessions from other European Union leaders over changes to the Withdrawal Agreement. The U.K. leader adamantly opposes a second Brexit referendum, but the British media reports suggest that she could be willing to entertain that possibility if she cannot secure a majority for her proposals in the British parliament.

In a statement to the Sunday Times, May said those seeking a second referendum were hoping to "subvert the process for their own political interests."

British officials are currently drawing up potential options surrounding a second nationwide vote, including offering voters the choice between May's Brexit plan and a no deal, the Sunday Times reported. As part of the plans, British lawmakers could be offered a vote on a series of options, including May's plan, a no deal, the so-called Norway option, and a second referendum.

Whichever option would garner the most amount of support in the British parliament would then potentially become the government's default position.

Jeremy Hunt, the U.K.'s foreign minister, said that despite the threat of a no-deal Brexit, the country would be able to find a way to succeed, even without an agreement in place with the EU by next March.

“I’ve always thought that even in a no-deal situation this is a great country, we’ll find a way to flourish and prosper. We’ve faced much bigger challenges in our history," he told The Telegraph.

Yet as the uncertainty around Britain's pending exit from the EU mounts, British officials also have drawn up advice for voters to not book holidays after next March, in case the country leaves the bloc without a withdrawal agreement, according to a separate report in the Sunday Times.

If the U.K. does not have a transition arrangement in place by next Spring, the country may not be able to use many of the international agreements, including those related to the travel industry, which allow people and goods to move unfettered across the Continent.