A series of attacks, mainly car bombings targeting security forces and markets, killed at least 30 people Wednesday in Iraq’s capital, authorities said.

The deadliest attack took place when twin car bombs hit a police checkpoint near a pet market, killing at least 19 people, officials said.

Police said the attack began when a suicide bomber rammed his explosive-laden car into a checkpoint manned by traffic police in the southeastern neighborhood of New Baghdad, killing five policemen and wounding nine. […]