Officials: Iraq Arrests Mastermind of Deadly 2016 Bombing

People gather at the scene of a massive car bomb attack in the Karradah district of Baghdad, Iraq, on July 4, 2016. Hadi Mizban/AP Photo

BAGHDAD—Iraq said Monday it has detained the mastermind behind a deadly 2016 bombing in a Baghdad shopping center, which killed around 300 people and wounded 250.

The suicide car bombing in the central Karradah district was the deadliest attack by a single bomber in the Iraqi capital after the 2003 U.S.-led invasion that toppled Iraqi dictator Saddam Hussein.