An Iran-backed militia may be responsible for an attack on an Iraqi military base in Kirkuk that wounded several American troops and killed a U.S. contractor Friday evening, a U.S. source on the base told Military Times.<\/p>\n\n\n\n
And Republican Sen. Tom Cotton warned Tehran in a tweet Saturday morning following the Kirkuk attack.<\/p>\n\n\n\n
\u201cIf American blood was shed by an Iran-backed group, Tehran ought to face swift and severe consequences,” Cotton tweeted.<\/p>\n\n\n\n
Nearly 30 rockets<\/a> slammed the Kirkuk base on Friday evening striking an armory housing weapons and explosives, the source detailed.<\/p>\n\n\n\n The American source, who spoke to Military Times on condition of anonymity because he was not authorized to speak on the record, said the truck that had fired the 107 mm rockets<\/a> had been recovered.<\/p>\n\n\n\n There were 36 tubes for launching the rockets on the vehicle, all had been fired except for four rounds, the source explained.<\/p>\n\n\n\n Officials with the U.S.-led mission to defeat ISIS, said in a statement Friday evening that several U.S. troops were wounded and an American contractor was killed in the attack. The U.S. source at the Kirkuk base told Military Times that four American troops were wounded in the attack.<\/p>\n\n\n\n The current status of the American troops is unknown, Military Times has reached out to Operation Inherent Resolve and has yet to receive a response. The Wall Street Journal reported that the American service members were not seriously injured.<\/p>\n\n\n\t