U.S. officials say that after agreeing two weeks ago to form a joint intelligence team to hunt al-Qaida, Pakistan has failed to approve visas to allow the necessary CIA officers to enter the country.
A Pakistani official said Wednesday the visas would be issued, but couldn't say when.
It's one more sign of a still-troubled relationship between the two countries, as Pakistani intelligence continues to question local citizens accused of helping the CIA spy on Osama bin Laden's secret compound in Abbottabad.
Pakistan arrested up to five people, including the man who rented his home to CIA officers within view of the compound, two officials said. All spoke on condition of anonymity to discuss intelligence matters.