Twin blasts kill 73 in Baghdad

 
The death toll from back-to-back market bombings carried out by the Islamic State group in eastern Baghdad has climbed to 73.

Police and health officials say several of the critically wounded died overnight while 112 people remain in hospital.

Also, at least five people are still missing after the blast ripped through the crowded Mredi market in the Shiite district of Sadr City, followed by a suicide bombing amid the crowd that gathered at the site.

 Police sources said the suicide bombers were riding motorcycles and blew themselves up in a crowded mobile phone market in Sadr City on Sunday, wounding more than 100 people in addition to the dead.

A Reuters witness saw pools of blood on the ground with slippers, shoes and mobile phones at the site of the blasts, which was sealed off to prevent further attacks.

In a statement circulated online, Islamic State said it was responsible for the blasts: "Our swords will not cease to cut off the heads of the rejectionist polytheists, wherever they are," it said, using derogatory terms for Shi'ite Muslims.

Iraqi forces backed by airstrikes from a US-led coalition have driven Islamic State back in the western Anbar province recently and are preparing for an offensive to retake the northern city of Mosul.

But the militants are still able to strike outside territory they control, often targeting members of Iraq's Shi'ite majority, most recently on Thursday when two Islamic State suicide bombers killed 15 people at a mosque in the capital.

Prime Minister Haider al-Abadi said the attacks were in response to Islamic State's recent defeats: "This gang targeted civilians after it lost the initiative and its dregs fled the battlefield before our proud fighters," he said on his official Facebook page.

Meanwhile, at dawn on Sunday, suicide bombers and gunmen attacked Iraqi security forces in Abu Ghraib, seizing positions in a grain silo and a cemetery, and killing at least 17 members of the security forces, officials said.

Security officials blamed Islamic State, and a news agency that supports the group said it had launched a "wide attack" in Abu Ghraib, 25km from the centre of Baghdad and next to the international airport.