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NATO helicopter attack injures 2 Pakistani soldiers

A NATO helicopter attacked a Pakistani army post near the Afghan border Tuesday, in an incident that could further increase tension following the U.S. raid that killed Osama bin Laden, Pakistani intelligence officials said.

A NATO helicopter attacked a Pakistani army post near the Afghan border on Tuesday, injuring two soldiers and further increasing tensions following the U.S. raid that killed Osama bin Laden, Pakistani officials said.

A similar event last year in which two Pakistani soldiers were killed prompted Pakistan to close for over a week a key border crossing that NATO uses to ship supplies into landlocked Afghanistan.

NATO coalition spokesman Lt. Col. John Dorrian confirmed there were helicopters flying near the Pakistani border Tuesday and that there was "an incident." The alliance was investigating, he said.

Fired across border

A Western military official said the incident started before dawn, when a NATO base in Afghanistan received intermittent direct and indirect fire from the Pakistani side of the border.

Two helicopters flew into the area to provide support, one of which fired across the border after twice receiving fire from the Pakistani side, said the official, speaking on condition of anonymity because of the sensitivity of the issue.

The Pakistani army said in a statement that its troops fired on the helicopter after it entered Pakistani airspace in the early hours of the morning. Two of its troops were injured when the helicopter returned fire, it said.

The attack took place in the Datta Khel area of the North Waziristan tribal region. The area is a known sanctuary for Taliban and al-Qaida militants and has been targeted repeatedly by covert U.S. drone strikes.

Examining flight path

NATO said it was still trying to determine whether the helicopter crossed in to Pakistani airspace.

"We're investigating the incident to determine a flight path by examining GPS waypoints in the helicopter computer, to construct a sequence of events and ultimately determine what led to the exchange of fire," said Dorrian, the NATO spokesman.

He declined to say which coalition country was involved. But most of the helicopters that fly in that part of Afghanistan are American.

Dorrian said NATO will work with the Pakistani government to determine what happened, saying they expect it will reflect the same good co-operation seen in recent military operations along the border. In recent weeks, NATO and Pakistan have launched co-ordinated offensives against militants on their respective sides of the border.

"This is going to be transparently looked into," Dorrian said.

The Pakistani army said it has lodged a strong protest and demanded a meeting with NATO officials to discuss the incident.

Last September, a U.S. helicopter attack killed two Pakistani soldiers at an outpost near the Afghan border, prompting Pakistan to close a key border crossing used by NATO for 11 days. The U.S. later apologized, saying the pilots mistook the soldiers for insurgents being pursued across the border from Afghanistan.

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