Iraqi security forces defending their headquarters
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Islamic State extremists seize key buildings in Ramadi

Islamic State extremists fighting in Iraq have seized key buildings in the city of Ramadi, just 70 miles from Baghdad.

They captured the police headquarters and the governor's office after suicide bombers breached the defences of the city.

It is a significant setback for Iraq's government and the US-led coalition that is fighting to defeat the extremists.

The BBC's World Affairs Correspondent, Caroline Hawley, reports.

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