The brother of Iraq's Sunni Arab vice president was killed early Monday in his Baghdad home, a government spokesman said. Gen. Amir al-Hashimi, brother of Vice President Tariq al-Hashimi and an adviser in the Defense Ministry, was killed by unidentified gunmen wearing military uniforms in his home in north Baghdad, Brig. Qassim al-Moussawi said. Further details were not immediately available, the Associated Press reported. Elsewhere, a suicide car bomber slammed into an Iraqi police checkpoint in Tal Afar, 420 kilometers (260 miles) northwest of Baghdad, killing one policeman and wounding 12, police Brig. Najim Abdullah said.