Two youths have been arrested on suspicion of arson following the fire at the former Pirelli, now Prysmian site in Eastleigh.
The fire started at 2.50pm yesterday afternoon, (June 13) at the derelict Pirelli Sports Club in Passfield Avenue.
The fire is being treated as suspicious and a joint investigation is being carried out between the fire service and the police.
Two local boys aged 15 and 12 have been arrested and are currently being questioned by police.
The Fire and Rescue reported the Dew Lane Social Club which occupied over 1,000 square feet as fully ablaze and collapsed.
Two main jets and one hose reel were used to extinguish the fire and eight firefighters wore breathing apparatus.
Eight fire engines attended from as far as Beaulieu and Portchester in addition to crews from Eastleigh, St Marys, Redbridge, Totton and Romsey many of which brought specialist equipment with them.
Crews were not stood down until almost midnight.
PC Susan Bendon from Eastleigh police station said: “Those who deliberately start fires are running the risk of causing serious injury or death to themselves or others.
“It may seem like harmless fun but to those whose property is damaged, it is very inconvenient and often costly.”
The following video footage of the fire is courtesy of Matthew Myatt.
Anyone with information about this incident is asked to contact PC Susan Bendon at Eastleigh police station on 101. Alternatively you can call the Crimestoppers charity anonymously on 0800 555 111.