Afghans say joint US-Afghan base under attack

KABUL, Afghanistan - December 1, 2012

Blasts sounded inside the military airfield at the edge of Jalalabad city early Sunday morning (local time).

Afghan officials briefed on the situation say helicopters were firing down into the base at what appeared to be militant gunmen inside.

The officials spoke anonymously because fighting was still going on and details were unclear.

The Taliban claimed responsibility for the attack in an email to reporters.

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