The Red Wall group wants to see the government shout more loudly about what it has been doing to remove illegal immigrants but they also want to see more investment in northern England to shore up support.

The group’s convenor, Bassetlaw MP Jo White, has also called for the introduction of ID cards.

Labour Together, an influential think tank which helped Sir Keir win his party’s leadership, is working with the group.

Its chief executive, Jonathan Ashworth, himself a former MP and shadow minister, told the BBC the organisation was re-orienting its efforts to take on the threat of Reform and was working closely with Red Wall MPs.

Its own research suggests that Nigel Farage’s party is particularly vulnerable on health policy and the future of the NHS.

Farage said that Labour should focus its efforts on tackling cross-Channel migrants before attacking Reform.

Reform won just five seats at the general election last year but came second in 98 constituencies, including 89 Labour seats.

The Red Wall caucus wants more investment in infrastructure for the north of England, where Reform was ahead of the Tories in dozens of seats last year.

One Red Wall MP who is a member of the group told the PA news agency a key concern was that Chancellor Rachel Reeves’ push for economic growth had focused too heavily on wealthier areas in the south.

Pointing announcements of funding for transport links between Oxford and Cambridge as well as backing of the Heathrow Airport expansion, they said: “That has no effect whatsoever on the red wall.

“It’s not going to create growth in the forgotten areas where Reform are more likely to be second.”