The Norfolk and Norwich University Hospital (NNUH) and Queen Elizabeth Hospital (QEH) said routine operations had been cancelled for emergencies.

BBC: Norfolk hospitals under 'severe pressure'

The NNUH, QEH and James Paget, near Gorleston, also said they had been on black alert in the last few days.

BBC: Norfolk hospitals under 'severe pressure'

The problems began at Queen Elizabeth Hospital (QEH) in King's Lynn on Sunday when ambulances were left queueing to hand over patients.

BBC: King's Lynn hospital calls in off-duty staff