Older people with crippling physical problems like bad backs and arthritis will bear the brunt of deep cuts to disability benefits, the government's own analysis suggests.

Liz Kendall used a speech today to defend plans to tightening the eligibility criteria for the main disability benefit in England, the personal independence payment (Pip).

The Work and Pensions Secretary this morning warned there is a 'risk' the welfare state would collapse without the proposed changes that will save £5billion.

Warning that 'welfare reform is never easy and it is rarely popular', she told the Institute for Public Policy Research: 'There is nothing Labour about accepting the cost of this economic but above all, social crisis paid for in people's life chances and living standards, and there is nothing inevitable about Britain's future path.

'If we have the courage and conviction to act, we must start shifting so much spending on the costs of failure to investing in the jobs, skills and public services that people need to build a better life, and this requires leadership, and it requires reform.'