Key highlights

1. "We do not have an accurate count yet," said the spokesman, Muhannad Haimour. "We estimate that 500 people have been killed, both civilians and military, and approximately 8,000 have fled the city."

2. The estimates are for the past three days, since Friday, when the battle for the city reached its final stages.

3. The 8,000 figure is in addition to the enormous exodus in April, Haimour said, when the UN said as many as 114,000 residents fled from Ramadi and surrounding villages at the
4. height of the violence.

5. The estimates follow a shocking defeat as Islamic State seized control of the Anbar provincial capital on Sunday, sending Iraqi forces fleeing in a major loss despite the support of US-led airstrikes targeting the extremists.

6. Bodies, some burned are littered on the streets as the militants carried out mass killings of Iraqi security forces and civilians.

7. Online video showed Humvees, trucks and other equipment speeding out of Ramadi, with soldiers gripping onto their sides.

8. With defeat looming, Prime Minister Haider al-Abadi had ordered security forces not to abandon their posts across Anbar province, apparently fearing the extremists could capture the entire desert region that saw intense fighting after the 2003 US-led invasion to topple dictator Saddam Hussein.

9. Earlier on , al-Abadi ordered Shiite militias to prepare to go into the Sunni-dominated province, ignoring US concerns their presence could spark sectarian bloodshed.

10. By late Sunday, a large number of Shiite militiamen had arrived at a military base near Ramadi, apparently to participate in a possible counter-offensive, said the head of the Anbar provincial council, Sabah Karhout.

11. US Secretary of State John Kerry said he remained confident about the fight against the Islamic State group, despite the setbacks like the loss of Ramadi.

12. Kerry, traveling through South Korea, said that he's long said the fight against the militant group would be a long one, and that it would be tough in the Anbar province of western Iraq where Iraqi security forces are not built up.

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