NINEWA / Aswat al-Iraq: A son of a chieftain of the Shamar clan was killed in an improvised explosive device (IED) attack in Sinjar district, west of Mosul city, on Friday, a security source in Ninewa said.“The IED targeted the vehicle of the chieftain’s son near the main road of al-Biaaj district, west of Sinjar, (110 km) west of Mosul,” the source told Aswat al-Iraq news agency. mHe did not give more information about the incident.