OUR STAFF REPORTER Lahore A four-year old boy died and three others injured when a roof of their house collapsed in Maryam Colony, Green Town here on Wednesday. On receiving information, Rescue 1122 staff rushed the spot and pulled out the victims from debris. Rescue-1122 media coordinator told that one Owais (4) died on the spot whereas three others including Maryam and Sidra received critical injuries. They have been shifted to nearby hospital where their condition was told stable till filing of this report. Valuables gutted: Valuables worth thousands of rupees were reduced to ashes in a medical store located near Shaukat Khanam Hospital on Wednesday. According to Edhi officials, fire broke out in a medical store due to short circuiting which reduced medicines and valuables worth thousands of rupees into ashes. Arrested: The Shadbagh police claimed to have arrested three members of a notorious gang involved in 20 crimes and recovered gold ornaments, cash, mobile phones, motorbikes and other valuables from their possession, says a handout issued by the City Police (Operations) spokesman.