People gather at the scene of a car bomb attack in Baghdad's mainly Shi'ite district of Sadr City, Iraq, May 11, 2016. REUTERS/Wissm al-Okili

People gather at the scene of a car bomb attack in Baghdad’s mainly Shi’ite district of Sadr City, Iraq, May 11, 2016. REUTERS/Wissm al-Okili

People gather at the scene of a car bomb attack in Baghdad's mainly Shi'ite district of Sadr City, Iraq, May 11, 2016. REUTERS/Wissm al-Okili

May 11, 2016 8:06 AM (UTC+8)