CityLahore Father, son die after inhaling poisonous gas By PakistanToday - November 5, 2016 0 145 Share Facebook Twitter Pinterest WhatsApp Two labourers, who were father and son, died after they inhaled poisonous gas from a tube well. . The poisonous gas killed Noor Mohammad on the spot. An unconscious Mohammad Ajmal was rushed to the hospital where he also breathed his last.