KARACHI - A teenage girl and her minor brother were injured in a low-intensity blast taken place in their house located in Nusrat Bhutto Colony, Orangi Town within the remits of Pirabad police station on Wednesday morning. The injured were identified as Sonia Yousuf, 19, and her brother as Irfan Yousuf, 11. They were shifted to the Abbasi Shaheed Hospital. Heavy contingent of law enforcers including Rangers and police reached the site and examined the blast site. According to the bomb disposal squad’s experts it was a homemade bomb which also contained ball bearings. SHO Ashfaq Baloch said that the victims complained that someone threw some explosive material at their house and escaped. Police was looking into the matter. The officer said that the case would be registered on complaint of Yousuf Masih, the father of the victims after he would get free.