Car bombs have killed at least six more people in Iraq Saturday, capping off the bloodiest week since the U.S.-led coalition transferred sovereignty to Iraq's interim government on June 28.
In Baghdad, a car packed with explosives blew up as Justice Minister Malek Dohan al-Hassan's convoy passed. Four people -- all believed to be his guards -- were killed, but the minister escaped unharmed.
Wanted terrorist Abu Musab al-Zarqawi's militant group has claimed responsibility for the assassination attempt in a statement on an Islamist website.
A short time later, a second explosion near the scene injured at least two police officers.
Meanwhile, south of Baghdad in Mahmudiya, another car bomb exploded outside the Iraqi National Guard headquarters. Hospital officials say two people were killed and at least 25 wounded.
At least 20 other people have been killed in car bombings this week in Iraq.