A wave of bombs exploded in markets in Shi'ite neighborhoods across Baghdad on Monday, May 27, killing more than 50 people, police and health officials said, in the latest attacks to increase fears Iraq risks sliding back into broader conflict, Reuters reported.

Sunni Muslim Islamist insurgents and al-Qaeda's Iraqi wing have increased attacks since the beginning of the year and often target Shi'ite districts to try to trigger a wider sectarian confrontation.