At least six persons, mostly women were injured when boiler of a factory exploded here on Saturday. Rescue sources said that boiler of a packaging factory located at Multan Road in Mohanwala area of area of Lahore exploded; when the workers were busy in their work. As a result of explosion a portion of the factory building collapsed resulting in injuries to five women and a male worker. The injured identified as Bushra, Fozia, Zahida, Aqsa, Shazia and other were pulled out from the debris by rescue personnel and shifted to hospital for treatment.