Americans missing in Baghdad kidnapped by Iran-backed militia - Iraqi, US sources

WASHINGTON/BAGHDAD (Reuters) - Three U.S. citizens who disappeared last week in Baghdad were kidnapped and are being held by an Iranian-backed Shi'ite militia, two Iraqi intelligence and two U.S. government sources said on Tuesday.Unknown gunmen seized the three on Friday from a private residence in the southeastern Dora district of Baghdad, Iraqi officials say. They are the first Americans to be abducted in Iraq since the withdrawal of U.S. troops in 2011.