Police found a cannabis farm inside a suburban house which caught fire last week.
The roof of the semi-detached property on Lime Tree Crescent in Kippax was destroyed in the blaze.
Nobody was inside the house when emergency services arrived.
West Yorkshire Police said:- “We were called by the fire service at 12:27am (Friday, October 12) to a report of the roof of a house on fire in Lime Tree Crescent, Kippax, due to a cannabis-growing set-up.
“No-one was in the property at the time and it has been made safe for scene examination.
“Enquiries are ongoing into the production of cannabis.”