Pakistan's intelligence wing Inter-Services Intelligence, commonly referred to as the ISI, is believed to have been involved in the 2009 attack on a CIA camp in Afghanistan, according to recently declassified cables of the United States State Department. Seven Americans and three other people were killed in the attack. This revelation is likely to raise tensions between the two countries.

The cable, published by non-governmental research institute National Security Archive based at the George Washington University, shows that the ISI offered $200,000 to the Haqqani network to carry out the 2009 attack on Camp Chapman. The report highlighted the frequent meetings between Haqqani members and the ISI in Pakistan.

"As of late December 2009, at the end of every month, senior Haqqani Network leadership met with the ISID in Islamabad, the meetings were attended by Siraj Haqqani and Badruddin Haqqani. ISI Colonel Nasib chaired the meetings. An unknown amount of funding was provided to the Haqqanis for use in unspecified operations," the cable said.

According to the National Security Archive, "a series of cables from January 11, 2010, and February 6, 2010 show that some funding for Haqqani attacks are still provided by the Pakistan Inter-Services Intelligence Directorate, including $200,000 for the December 30, 2009, attack on the CIA facility at Camp Chapman."

The cables also showed how Jalaluddin Haqqani struggled for funding for the group after "American resources" dried up following the end of the Cold War, and began "fundraising efforts in the Gulf States," a practice the terror outfit continued to follow, as per an April 8, 2010, cable. The U.S. State Department files dated from 2008 through 2010 were obtained by the National Security Archive in response to the Freedom of Information Act request.

Pakistan's ISI has been accused of facilitating terror attacks in Afghanistan and on Indian soil, with Mumbai terror attack convict David Headley recently claiming the intelligence agency provided financial support to Lashkar-e-Taiba, which perpetrated the 26/11 2008 terror attacks in Mumbai that killed 166 people.