The move comes after Secretary of State Hillary Clinton presented the Pakistanis with the U.S. list of most-wanted terrorism targets, U.S. and Pakistani officials said Wednesday.

The investigative team will be made up mainly of intelligence officers from both nations.

The formation of the team marks a return to the counterterrorism cooperation that has led to major takedowns of al-Qaida militants, like the joint arrest of Khalid Sheikh Mohammed in 2003. All those interviewed spoke on condition of anonymity to discuss matters of intelligence.