Two sheds have been destroyed in a suspected arson attack on an allotment site.
Police called for firefighter’s help at the incident off Blackpool Road, Preston, which started at 1am on Sunday.
Firefighters found a propane cylinder inside one of the sheds, which had to be cooled to stop a risk of explosion.
Two other sheds nearby also suffered heat damage.
A Lancashire Fire and Rescue spokesman said the fires were deliberately started and an investigation has begun.