Rocket attack in Iraq kills two U.S. troops, potentially raising tensions with Iran - The Washington Post

The attack also killed one non-American member of the coalition force at Camp Taji, about 17 miles north of Baghdad. At least five other people have been evacuated in serious condition, a U.S. military spokesman said.
The weapons used were 107 mm Katyusha rockets, which U.S. officials have considered to be a hallmark sign of Iranian-backed militias in Iraq.