This quarry area in the district of Karma in Fallujah may already be known to the coalition.
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6 June, 2005,BBC
US finds 'insurgent lair' in Iraq American troops in Iraq have discovered a series of underground bunkers used by insurgents, the US military says.
A spokesman said the complex in an abandoned quarry in the restive province of Anbar covered an area the size of four football pitches.
The bunkers are said to contain a large stockpile of weapons and living areas with air conditioning and showers.
Meanwhile, Iraqi authorities said they had arrested an insurgency leader and key al-Qaeda figure in Mosul.
The arms cache was one of 50 found in recent days in Anbar province, west of Baghdad, the spokesman said.
Tips from locals and information from detainees had helped to identify the locations uncovered in the ongoing operation, the spokesman said.
He said nobody was in the underground complex near the town of Karma when it was found.
Inside they discovered weapons, ammunition, black uniforms and ski masks, night vision goggles and fully-charged mobile phones.
The complex also contained four furnished living spaces and a kitchen with fresh food, the spokesman said.
US and Iraqi forces continue to battle insurgents in the vast province following a major assault on rebels in Falluja last November.
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