TRURO firefighters dealt with a leaking gas cylinder at a commercial building in Feock this morning.
A crew from the city's fire station was called to Trelissick just before 10am this morning.
On arrival they found a 5,000 litre propane cylinder leaking gas from the manifold.
A fire spokesman said: "The crew was unable to isolate the leak so they used a ground monitor connected to a hydrant to cover the large propane tank to make the scene safer.
"They remained on scene until a gas engineer attended and isolated the leak."