A small fire in a boiler room left a pall of smoke hanging over the Royal Cornwall Hospital in Truro last night.

Cornwall Fire and Rescue Service received an alarm activation call at the hospital at 11.39pm on Thursday night.

A fire engine from Truro Fire Station was despatched and shortly afterwards a second 999 call came from staff who could smell smoke who had gone to investigate.

Another appliance from Tolvaddon was sent to the scene. When the commander arrived, they asked for two more appliances as they could smoke coming from the building.

Cornwall Frie and Rescue service said the building where the fire was was not part of the main hospital and was away from patients and their care was not interrupted.

A small fire was found in the boiler room and put out by firefighters using a CO2 extinguisher.

The building was then handed over to the engineering staff when they arrived.

A spokesperson for the fire and rescue service said: “The Critical Control Centre received a call reporting an alarm activation within a building at RCH Treliske.

“One appliance from Truro Fire Station was immediately alerted. Shortly after, a second call was received reporting a smell of smoke from the building during investigations by on-site staff. An appliance from Tolvaddon Fire Station was alerted.

“On arrival the incident commander requested a further two appliances as smoke could be seen coming from the building. The building was not part of the main hospital and was not impacting on the care of any patients. An appliance from Perranporth and a second appliance from Tolvaddon Fire Station were immediately alerted.

“Due to the number of appliances now in attendance two wholetime officers and an Incident Command Unit were also alerted.

“A small fire was subsequently located within the boiler room and crews extinguished it using a CO2 extinguisher. Our Truro crew remained on scene until an engineer arrived and has handed the incident over to them.”

During this incident appliances from St Austell and Hayle provided cover in the Truro and Tolvaddon area.