Pakistan strongly protested Monday against NATO helicopter incursions into its territory from Afghanistan, calling them "a clear violation and breach" of the United Nations rules for foreign forces in Afghanistan.
NATO helicopters have chased insurgents into Pakistan at least twice in the past few days, the International Security Assistance Force acknowledged Monday.
That is not allowed, Pakistan's Foreign Ministry said in a strongly worded statement.
The United Nations "mandate terminates/finishes at the Afghanistan border. There are no agreed hot pursuit rules," the ministry said.