Six people were killed on Friday in a double bomb attack targeting Iraqi Deputy Prime Minister Salam al-Zubaie, who was injured in the incident, an Interior Ministry source told Xinhua.

The state-run al-Iraqia television reported that al-Zubaie was slightly wounded, without providing further details.

A U.S. military spokesman confirmed that al-Zubaie was injured and was admitted to a U.S. hospital.

The Interior Ministry source said on condition of anonymity that a suicide bomber and a car bomb targeting al-Zubaie detonated after Friday prayers as he was leaving a mosque near his house in a heavily fortified area adjacent to the Green Zone in central Baghdad.

"The car detonated near al-Zubaie's house and the suicide bomber wearing an explosive-belt blew himself up at the mosque where al-Zubaie was observing the weekly prayers, killing six of his bodyguards and relatives and wounding al-Zubaie and 15 others," the source said.

Al-Zubaie was evacuated to Ibn Sina Hospital run by U.S. troops inside the Green Zone, the source said.

Earlier, the source said that three people were killed and 10 others wounded in the attack.

Al-Zubaie, one of two deputies to Prime Minister Nuri al-Maliki,was elected to the parliament in December 2005 as part of the Sunni Arab-led Iraqi Consensus Front list.