Updated

Recently declassified U.S. government cables suggest Pakistan's intelligence service paid a U.S.-designated terrorist organization $200,000 to carry out one of the deadliest attacks against the CIA in its history.

A U.S. intelligence official says the information was uncorroborated and inconsistent with what is known about the 2009 suicide bombing at Camp Chapman in Khost, Afghanistan.

Seven CIA employees were killed after a Jordanian double agent tricked the Americans into believing he would lead them to Ayman al-Zawahri, then al-Qaida's No. 2. The correspondence released by the National Security Archive is dated to the weeks after the attack.

The cables say Pakistani intelligence met twice with the Haqqani network in December 2009 and provided $200,000 "to enable the attack on Chapman."

The documents acknowledge the information is "not finally evaluated intelligence."