 Flares and smoke bombs were used to give the illusion of the structure being ablaze, and after everybody had been "rescued" from the building, a real fire was set to enable the fire brigade to demonstrate their firefighting skills.After the mock wedding, the six men and nine boys aged between 10 and 14 were ready to enact their staged rescue when the real fire was accidentally lit; the cause of this error is unknown.Flames instantly took hold and spread the full height of the structure, trapping the occupants inside.