Gunmen assassinated a top Iraqi Foreign Ministry official Saturday evening in a drive-by shooting while he stood outside his Baghdad home, police said.

Jassim Mohammed Ghani (search), the ministry's director-general, was killed at about 9 p.m. in western Baghdad's al-Kharijiyah (search) district, Capt. Talib Thamer said.

Officials at the Foreign Ministry were not immediately available for comment.

Insurgents have routinely targeted Iraqi government officials in a relentless campaign to derail the country's postwar reconstruction efforts.

Meanwhile, the U.S. military pronounced its weeklong offensive near the Syrian border over Saturday, saying it had successfully "neutralized" an insurgent sanctuary and killed more than 125 militants.

Many more suspected insurgents were wounded and 39 with "intelligence value" were detained, the military said in a statement.

Nine U.S. Marines were killed and 40 injured during the campaign known as Operation Matador (search), the military said in a statement.