Car bombs killed at least 11 people in Baghdad on Tuesday as militants showed increasing defiance to a major security operation in the capital. A car rigged with explosives tore through a street in the Sadiyah district in southwestern Baghdad. At least six people were killed and 14 injured, police said. The neighborhood is mixed between the majority Shiites and Sunnis, whose militant factions are blamed for many of the recent bombings and attacks. Later, a suicide attacker drove a bomb-laden car into a vegetable market in the Shiite enclave of Dora in southern Baghdad. At least five people were killed and seven injured, police said.