The body that represents hospitals across England has issued a startling warning that the NHS is close to breaking point because of its escalating cash crisis.

Years of underfunding have left the service facing such "impossible" demands that without urgent extra investment in November's autumn statement it will have to cut staff, bring in charges or introduce "draconian rationing" of treatment – all options that will provoke public disquiet, it says.

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In an unprecedentedly bleak assessment of the NHS's own health, NHS Providers, which speaks for hospital trust chairs and chief executives, tells ministers that widespread breaches of performance targets, chronic understaffing and huge overspends by hospitals mean that it is heading back to the visible decline it last experienced in the 1990s.

"Taken together this means the NHS is increasingly failing to do the job it wants to do and the public needs it to do, through no fault of its own," Chris Hopson, the chief executive of NHS Providers, writes in the Observer.

His intervention comes days before the influential Commons health select committee decides whether to launch a special inquiry into the state of the NHS in England. After months dominated by the Brexit debate, the state of the NHS is now emerging as the key domestic challenge facing Theresa May's government.