At least 23 people were killed and dozens were wounded Monday when two car bombs, including one driven by a suicide attacker, blew up in different parts of Baghdad, police said. Neither of the attacks took place in parts of the sprawling city where visiting Iranian President Mahmoud Ahmadinejad was located. In an unrelated incident, the US military reported finding a grave containing 14 people, believed to be members of the Iraqi security forces, thought to have been executed by al-Qaida in Iraq. In Baghdad's deadliest attack, a parked car bomb killed at least 21 people and wounded 43 in central Baghdad's Bab al-Mudham neighborhood on the eastern bank of the Tigris. The US military confirmed there was a car bombing but was investigating the incident and could not immediately provide more details.