Three hospitals in England have failed fire safety checks ordered in the aftermath of the Grenfell Tower fire.
Buildings at London’s King’s College Hospital, Sheffield’s children’s hospital and the North Middlesex Trust have been found to have combustible cladding.
Those three trusts, along with another 16, have also introduced 24-hour fire warden patrols to improve safety.
Checks on cladding used at five sites have yet to be finished.
The tests were ordered in the wake of the fire at the west London tower block, which killed at least 80 people last month.
NHS Improvement said 38 trusts requested help in carrying out a fire safety tests after it wrote to all providers in England asking them to check on 19 June.
Of these 19 have had fire safety inspections and a review of their fire procedures which NHS Improvement said means they need no further action at this stage.
Another 11 have had their cladding tested and found it is not made of the flammable aluminium composite material (ACM) which is believed to have helped spread the Grenfell Tower fire so quickly.
A further five organisations are still waiting for the results of their combustibility tests.
The buildings that are affected are believed to be an office block and two outpatient clients.
Some of the cladding has already been removed and none of the buildings were used to house inpatient accommodation.
