KARACHI: Seven people died while six others were injured on Sunday when a coaster overturned after colliding with a trailer on Karachi's Mauripur Road, police said.According to a statement issued by the Mauripur police station, those killed in the accident included four children and two women.The deceased were 40-year-old Sughra, 45-year-old Shazia, 10-year-old Kinza Ahmed, 14-year-old Qadeer Abdul Jabbar, six-year-old Sakeena Manzoor, four-year-old Zeenat Hayat and an unidentified person aged 40.The wounded, which included two women and a boy, were 35-year-old Azhar, 35-year-old Bushra, 35-year-old Shabbir, 25-year-old Sadiq, 20-year-old Zainab and 10-year-old Mudasir.The wounded and the bodies were shifted to Civil Hospital Karachi (CHK), the police statement said, adding that further investigation was under way.The accident occurred when the trailer took a U-turn and the coaster - which was coming from behind and apparently speeding - rammed into it and overturned.Meanwhile, Sindh Chief Ministe r Murad Ali Shah expressed grief at the lives lost in the incident.In a statement, he directed the administrations of CHK, Jinnah Postgraduate Medical Center and SMBB Institute of Trauma to provide the best treatment available to the injured passengers.He also summoned a detailed report from Sindh Inspector General Ghulam Nabi Memon, ordering police to take strict measures to prevent traffic accidents.