Quetta: At least two children died and six injured in a gas leakage blast in Quetta’s police line area on Monday morning. The incident happenedĀ in police line area of Quetta, police said. The incident was caused by gas pipe leakage. The injured in an unconscious condition were rushed to civil hospital Quetta for medical treatment. The doctors described the condition of two of the unconscious as serious. The tragedy struck at the house of a police constable who was living in police line.