The growing gap between the UK's "haves and have-nots" is in danger of becoming a "chasm", a report has warned.
Research by the Centre for Social Justice (CSJ) think tank argues the most disadvantaged are no better off than they were 15 years ago.
It mentioned stagnant wages, family breakdown, poor housing, crime, mental health and other issues, saying the gap widened during the pandemic.
Ministers highlighted the support to help with the rising cost of living.
The report by the CSJ's Social Justice Commission says the country is at risk of slipping back to a social divide not seen since the Victorian era.
In Two Nations: The State of Poverty in the UK, the CSJ says the country is "deeply divided", with the "systemic problems facing those at the bottom of society in danger of becoming entrenched".
"For too many Britain is broken and the gap between the haves and have-nots is in danger of becoming a chasm," the report adds.
It argues the situation worsened as a result of lockdowns during the Covid pandemic, pointing to increased mental health problems among young people, a jump in school absences and a rise in the number of people on working-age benefits.
Andy Cook, chief executive of the CSJ, said: "Lockdown policy poured petrol on the fire that had already been there in the most disadvantaged people's lives, and so far no one has offered a plan to match the scale of the issues.
"What this report shows is that we need far more than discussions on finance redistribution, but a strategy to go after the root causes of poverty - education, work, debt, addiction and family."
The commission behind the report is chaired by former Sunday Times editor Martin Ivens, and includes other figures such as former Bank of England governor Lord King, the Labour mayor of Greater Manchester, Andy Burnham, and Conservative MP Miriam Cates.
The research included a poll of more than 6,000 people, half of which were on the lowest incomes, conducted by J.L. Partners.
The commission, which will report its policy recommendations next spring, also travelled across the UK to more than 20 towns and cities and heard from some 350 charities, social enterprises and policy experts.