Crumbling concrete, known as RAAC, is believed to be present in four areas of the General Hospital.

The Infrastructure Minister, Deputy Tom Binet, says it was found after 'exhaustive investigations'.

"Structural engineers will now undertake a full site inspection to confirm whether RAAC is present and in the event that it is, all necessary measures will be taken to ensure that the buildings are made safe for the longer term.

In the meantime, the hospital is making arrangements to enable a full inspection to be undertaken and ensure patient safety."

The material has caused a crisis in England, with around 150 schools forced to close partially or completely at the start of term and hospitals clearing wards.

RAAC or reinforced autoclaved aerated concrete is a lightweight material that was commonly used in the 1950s to 1990s, often in flat roofs.

The UK Health and Safety Executive has said it is not beyond its lifespan and may ‘collapse with little or no notice’.

Answering questions in Jersey’s States Assembly earlier this month, Ministers said they did not believe the material had been used in Jersey but that work was ongoing to establish if it was present.

The Education Minister moved to reassurance parents ahead of the new academic year that it was not believed to be in Jersey schools.

The problem hit the headlines after a UK government review of the presence of the material following the collapse of classroom ceilings. 

Deputy Binet says the issue has been, and will continue to be, an 'absolute priority.’