http://timesofindia.indiatimes.com/world/pakistan/Pakistan-stops-NATO-supplies-after-raid-kills-up-to-25-troops/articleshow/10880836.cmsAKKAGHUND: NATO helicopters attacked a military checkpoint in northwest Pakistan on Saturday, killing up to 25 troops and prompting Pakistan to shut the vital supply route for NATO troops fighting in Afghanistan, Pakistani officials said.
The attack comes as relations between the United States and Pakistan, its ally in the war on terror, are already badly strained following the killing of al-Qaida leader Osama bin Laden by US special forces in a secret raid on the Pakistani garrison town of Abbottabad in May.
Pakistan called that raid a flagrant violation of its sovereignty.
A Pakistani military spokesman confirmed Saturday's pre-dawn cross-border attack in the tribal region of Mohmand and said casualties had been reported, but gave no details.