More than 70 people have been killed in a series of bombings targeting predominantly Shi'ite Muslim neighborhoods of the Iraqi capital.
More than 12 blasts rocked Baghdad on May 27, renewing fears of an escalating Sunni-Shi’ite sectarian clash.
No group claimed responsibility for the violence, but Sunni Islamist insurgents and Al Qaeda-linked militants have previously attacked Shi'ite districts.
More than 1,000 people have been killed in the past two months in bombings in Shi'ite as well as Sunni areas of Iraq.
It is described as the most sustained wave of violence since U.S. troops withdrew in December 2011 and has raised fears of a repeat of the sectarian attacks that left thousands of Iraqis dead in 2006-07.
Minority Sunnis accuse Iraq’s Shi’ite-dominated government of discrimination.