Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Officials: US Civilian Contractor Killed in Attack on Iraq Base Reuters A U.S. civilian contractor was killed in a rocket attack on an Iraqi military base near the oil-rich city of Kirkuk Friday, U.S. officials said. Several U.S. service members and Iraq personnel were also wounded, the U.S.-led coalition fighting Islamic State said in a statement, adding that Iraqi security forces would be leading the response and investigation into the attack. U.S. officials said, on condition of anonymity, that the service members were lightly wounded and believed to be back on duty. One official said the United States was looking into the possible involvement of Kataib Hezbollah, an Iranian-backed Shi'ite Muslim militia group. Links to Iran? In December, U.S. Secretary of State Mike Pompeo blamed Iranian-backed forces for a series of attacks on bases in Iraq and warned Iran that any attacks by Tehran or proxies that harmed Americans or allies would be "answered with a decisive U.S. response." Tensions have heightened between Tehran and Washington since last year when President Donald Trump pulled the United States out of Tehran's 2015 nuclear deal with six powers and reimposed sanctions that have crippled Iran's economy. Since then Washington has blamed Iran for attacks on oil tankers this summer, including off the coast of the United Arab Emirates, and a major strike on oil facilities in Saudi Arabia. Iran has denied being behind the attacks. .