The blaze broke out on Mobberley Road at around 11pm on Saturday evening, with five fire engines called to the scene.
Firefighters battled the blaze long into the early hours and police now say that having taken closer look it appears there was a cannabis farm hidden in the house’s attic.
A Greater Manchester Police spokesperson said: “At around 11.25pm Saturday 26 June 2023, Greater Manchester Police were called to reports of a fire at an address on Mobberley Road, Bolton.
“Officers attended to support colleagues from Greater Manchester Fire and Rescue Service.
“Upon further inspection, officers believe there to be a cannabis farm in the attic of the property.
“A woman in her 40s and a man in his 30s have been arrested for cultivation of cannabis and abstracting electricity.
“Both have been released on police bail.”
The fire proved to be extremely enduring, with crews using three jets, one hose reel and four breathing apparatus to extinguish the fire as well as a turntable ladder and a drone unit to tackle it.
Firefighters and police remained on the scene even into the next morning on Sunday but as yet no serious injuries have been reported.
Following the man and woman’s arrest, police have now warned the public of the consequences that incidents like these can have.
“These include high powered heat lamps, chemicals and the bypassing of electrical meters with significant usage of electricity that can cause fires to break out.
Information can also be passed on by calling police on 101 or 999 in the event of an emergency.
Alternatively, witnesses can contact independent charity Crimestoppers anonymously on 0800 555 111.
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