The ISI 's Covert Action Division ( CAD ) and the Special Services Group conducted a secret paramilitary operation to capture a high-ranking al-Qaeda operative Abu Faraj al-Libbi on 4 May 2005 , after a raid outside the town of Mardan , northeast of Peshawar . His arrest was confirmed by the Government sources and noted as " al-Libbi was a high ranking al-Qaeda official , rumored to be third after Osama bin Laden and Ayman al-Zawahiri . " Al-Libbi replaced Khalid Shaikh Mohammed after his arrest in March 2003 in connection with the 11 September attacks . The Pakistan government arrested al-Libbi and held him on charges in relation to being a chief planner in two assassination attempts on the life of President Pervez Musharraf in December 2003
11 September attacks
September 11 attacks
Insurgency in Khyber Pakhtunkhwa