AN investigation is underway today after one shed was destroyed and two others were badly damaged at an allotments site in Blackburn.

But firefighters initially believe that the blaze, reported to the emergency services just after 1am on a site off Queen's Park Close, was not started deliberately.

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Crews from Blackburn station had to use a ladder to scale a security fence before using a hose reel jet to bring the blaze under control.

Watch manager Lee Garnett said: "The fire started in one shed and then spread, through radiated heat, to the two other sheds nearby. We will be going back today to investigate the cause of the incident.

"It does not appear to have been started deliberately as there is a security fence there which was still locked upon our arrival."

Thermal imaging cameras were also used to check to see if the fire had spread any further.