(KUNA) -- A senior Iraqi army officer was assassinated by masked gunmen in Mosul city, north Iraq, said a security source on Tuesday. The source added that officer died in Al-Thawra neighborhood east of the city.In Kirkuk, a road-side bomb exploded near a Multi-National Force (MNF) vehicle in Tiseen neighborhood which but caused minor damages to the patrol car. Meanwhile, the Iraqi interior forces in addition to the military and MNF troops conducted operations in Khadra neighborhood in Kikruk. The forces arrested during the mission, six insurgents and confiscated three vehicles as well as several weapons. Another operation in an area south of the city resulted in the arrest of five suspects.