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Patients are succumbing in hospital corridors as safety is compromised by “intolerable” situations, physicians say.

The warning has been issued in a letter to the prime minister signed by 68 senior A& E doctors, spelling out the hazard patients are facing this winter.

It comes as reports have emerged of people being left for hours on trolleys in corridors and stuck in ambulances.

Hospital bosses said they had run out of beds as they battle with “very high” rates of flu .~ ATAGEND

Official figures show the number of hospital admissions from flu has risen by more than 50% in the past week in England, although Public Health England officials said the levels were surely not “unprecedented”.