The fire broke out during a national fire strike but Lancashire Fire and Rescue say 40 firefighters turned out and they were ready to cope. The strike action is now over ahead of Bonfire night tomorrow night.
This aerial footage gathered by the Granada Reports drone reveals the extent of the destruction caused by a huge blaze at a warehouse in Blackburn.
Officers remain at the scene of a huge fire in Blackburn. The building is thought to be a tyre recycling business. Investigations into the cause are still going on.
John Taylor from Lancashire Fire and Rescue told Granada Reports that the scale and intensity of the blaze that started at a Blackburn mill last night meant the fire was treated as a "Major incident".
Fire and Rescue services throughout the country have been on a four day strike in the run up to Bonfire night in a row over pensions.
Footage courtesy of Ibrahim Qadri - it shows the huge cordon around the fire on Birley Street, Blackburn.
Firefighters across the North West are due to go on strike later today.
Members of the Fire Brigade Union will strike for five hours from midday in a row over pensions.
It is the first of three days of industrial action planned over the Bank Holiday weekend.
A spokesperson for Merseyside Fire & Rescue Service said:
“The public should be reassured that our staff will maintain a significant emergency response capability during industrial action on May 2, May 3 and May 4 and 999 calls will be answered and responded to.
“During any industrial action we always ask the public to show extra care and vigilance.”
Fire crews across the North West are due to walk out this morning.
It's the ninth strike by the Fire Brigades Union since September in the row over pensions and the retirement age.
Todays strike walk out is scheduled to last 2 hours from 6.30am to 8.30 this morning.