BAGHDAD / Aswat al-Iraq: Two Iraqi civilians have been killed and 5 others injured in sporadic US Army fire on the main highway passing through west Baghdad's Yousifiya township, following an explosive charge blast on Saturday, a security source reported."An explosive charge blew off on the main highway passing through Yousifiya township, aimed at a US Army patrol that did not harm any of the patrol's soldiers," the source told Aswat al-Iraq news agency, adding that the US troops opened sporadic fire on the passing cars, killing 2 persons and wounding 5 others."