UPDATE: Cornwall's Chief Fire Officer Des Tidbury confirmed that no one was injured in the blaze.
He Tweeted: "Serious house fire in Helston, fortunately no one hurt. Sprinklers would have greatly reduced damage."
Firefighters have battled a blaze at a house in Helston this afternoon.
The detached two-storey house was engulfed in flames when crews arrived at the scene just before 12:30pm, forcing them to scramble further engines to assist.
Using two hose reel jets, two covering jets and four sets of breathing equipment crews were able to extinguish the blaze.
A thermal imaging camera was then used to confirm the fire was out, before a positive pressure ventilation fan was used to clear smoke from the property.
A spokesperson for Cornwall Fire & Rescue Service said there has been “extensive” damage to the ground floor of the house.
“A fire investigation was carried out into the cause of the fire at 2pm.”
It remains unclear as to whether anyone was inside the property when the fire started.