UPDATE: 12.51PM: The fire at Homebase broke out just after midnight and destroyed about 30 per cent of the store's stock, although the building itself was not badly damaged.
No one has been injured in the blaze, and an investigation into the cause is on-going.
UPDATE: 11.52AM: Speaking from the scene this morning, fire incident commander Mark Hewitt from Cornwall Fire and Rescue Service said crews were called to the scene just after midnight.
“When the initial crews arrived they saw that smoke was billowing from the building and requested support appliances," Mr Hewitt said.
“We had a total of eight fire appliances and supporting specialist vehicles such as the incident command support vehicle.”
The fire crews had to cut through the metal shutters in order to gain access into the store, which suffered extensive damage due to the blaze.
“We had to break into the property using crash rescue cutting equipment,” Mr Hewitt explained.
“When the crew got inside we found a well-established fire inside the store.
“We mainly fought from the outside of the building until it was safe to let fire fighters with breathing apparatus inside to extinguish the fire.”
An investigation is due to take place later this morning to establish the cause of the blaze.
“At this time we don’t know what the cause was,” Mr Hewitt said. “Our fire investigation team is assembling. They should be starting their investigation within the next half hour.”
Mr Hewitt praised the work of the fire crews who tackled the fire for more than eight hours.
“The crews worked very well and saved the building to a degree,” he said.
“When this type of fire has occurred before the building was completely destroyed.
“The crews got in quickly and started tackling the fire quickly.”
Mr Hewitt said crews will remain on scene to monitor hotspots in the building.
Roads in the area have now been reopened.
The scene from outside Homebase this morning, on video below, gives little indication of the severity of the fire.
Do you have any pictures or video of the fire at Homebase? Email them to firstname.lastname@example.org
UPDATE: 9.42AM: The fire is scaling down at this time. Smoke is still billowing from the building.
Cornwall Fire and Rescue Service say it could take up to 24 hours to completely bring the fire under control.
Plymouth Road has now reopened and all restrictions on the A38 sliproad have been lifted.
There is a major fire at a Homebase store in Liskeard.
EARLIER: Around 80 firefighters have been battling the blaze in the Plymouth Road building for nearly eight hours.
The building’s roller doors have been forced open and firefighters wearing breathing apparatus are fighting the fire from inside with a main water jet. Others are trying to battle the blaze from outside the premise.
Crews from from Liskeard, Callington, Looe, Lostwithiel, Saltash, Bodmin, Wadebridge and St Austell arrived to find smoke billowing from the Bubble Retail Park building just after midnight this morning.
A spokesperson for Cornwall Fire and Rescue Service said the unit measuring seventy metres by thirty metres was “heavily smokelogged” on arrival and crews had been trying to gain entry.
A further update at 3am shows the interior of the premise was completely on fire and a safety assessment at the scene deemed it unsafe for firefighters to enter the building initially.
By 4am the fire crews had forced the building’s sliding doors open and were able to battle the blaze from just inside.
The fire is expected to take up to 24 hours to bring under control, according to Cornwall Fire and Rescue.
A Fire Investigation will be taking place later this morning.
Due to the proximity of the incident to the main A38, it is expected that severe traffic disruption will be experienced in the area. Devon and Cornwall Police are liaising with Cornwall Highways to organise diversions within the area.
At present, road closures are in place as follows: A38 on and of slip at Island Shop, Plymouth Road roundabout at Island Shop and Charter Way south of Peppers Park Road.
Diversions are in place.
Castle Street, the main town thoroughfare, is already closed because of road works.
Motorists wanting to shop at Morrisons may experience long delays.
At this time, the two main routes into Liskeard are unavailable. Access to Liskeard from the A38 will be via Moorswater and Dobwalls or via A390 from Callington.
The police are advising motorists to consider whether any journey to and from the town is necessary.
More information to follow.