QUETTA - A police sub-inspector died of suffocation due to leakage of gas in Sariab locality of Quetta on Sunday. According to police, the sub-inspector at Kechibeg police station, Sanaullah, went to bed without switching off the heater. Police rushed to the site after getting information and shifted the dead body to a hospital for autopsy. Police handed over the body to heirs for burial after completing legal formalities.