BAGHDAD, Feb. 28 (UPI) -- Two suicide bombings ripped through a Shia neighborhood of the Iraqi capital Sunday, killing at least 31 people.
The IS, also known as ISIS, ISIL and Daesh, is a mainly Sunni Muslim terrorist group that considers Shia Muslims to be heretics. The militants reportedly said more attacks against Shia Muslims would follow.
Last week, the group claimed responsibility for a similar attack in a Shia suburb of Damascus, Syria.
Since 2014 the group has controlled swaths of land in northern and western Iraq after spilling over from Syria in a rapid advance that sent thousands of Iraqi troops fleeing.
The Iraqi military, supported by airstrikes from a U.S.-led coalition, has counter-attacked since then, seizing IS-held cities such as Tikrit, Sinjar and Ramadi.
However, the militants still possess strongholds in Mosul, Fallujah and neighboring Syria -- and continue conducting suicide bomb attacks in Shia communities, often detonating a follow-on explosive after emergency services and crowds have formed at the scene of an initial blast.
Iraqi security forces, along with their Western and Iranian-backed allies, have for months prepared for an upcoming assault on Mosul.
Sunday's attack coincided with an IS assault on Abu Ghraib, a suburb west of the capital. The attack, coordinated between suicide bombers and gunmen, was reportedly driven back.