Suspicion over his death falls strongly on Pakistan's Inter-Services Intelligence directorate (ISI), the army's powerful spy agency.

ECONOMIST: Murder in Pakistan

It also said that Pakistan's Inter-Services Intelligence Directorate was involved in the blasts.

WSJ: Actor Sanjay Dutt Sentenced to Prison

An official with Pakistan's Inter-Services Intelligence Directorate military spy agency contested the U.S. view that Dr. Afridi was a patriot.

WSJ: Doctor Who Helped Track Bin Laden Gets 30 Years

Pakistan's powerful Inter-Services Intelligence Directorate (ISI) oversees Afghan operations.

CNN: Is This Man Starting to Enjoy Power?

Since some of Pakistan's jihadist groups declared war on their country in 2007, they have attacked air-force bases, buses carrying servicemen and at least five offices of the Inter-Services Intelligence directorate, the military spy agency that spawned and nurtured many of the extremist outfits.

ECONOMIST: More extremist attacks��and establishment fantasies

The most politically explosive documents concern the conflicting loyalties of Pakistan's Directorate of Inter-Services Intelligence, or ISI.

WSJ: The AfPak Papers

China has given Pakistan most of the ordinance that its notorious Directorate for Inter-Services Intelligence--better known as ISI--gives to terrorist groups.

FORBES: Magazine Article

Today, that army and its Directorate for Inter-Services Intelligence (ISI) are so thoroughly infused with jihadist sympathies that their will to win against Muslim co-religionists is in serious question.

CENTERFORSECURITYPOLICY: Born to Jihad

It is unknown if operations were ever restarted, and Pakistan's Directorate of Inter-Services Intelligence (ISI), the powerful spy agency, has said the United States has its own targeting information and no longer relies on Pakistani intelligence.

MSN: US drones kill 45 in Pakistan, officials say - World news - South and Central Asia - Pakistan | NBC News