Attackers shot and killed a senior Interior Ministry official and two of his bodyguards in a drive-by shooting at the official's Baghdad home Monday morning, according to the Interior Ministry.

Col. Musab al-Awadi (search), the ministry's deputy chief of tribal affairs, and his guards had just left the house when the gunmen drove up and shot them, according to Sabah Kadhim, an Interior Ministry spokesman.

Insurgents have been increasingly targeting police, national guardsmen and other security officials they accuse of collaborating with U.S. forces in Iraq.

The attack in Baghdad's al-Baya neighborhood Monday occurred as the three men were just getting in their car to drive away from al-Awadi's home.