BEIJING, July 28 (Xinhuanet) --The Pentagon said Tuesday it was launching a manhunt to find whoever leaked tens of thousands of classified documents on the war in Afghanistan, one of the largest security breaches in US military history.
US defense officials said the person behind the release of some 91,000 classified documents appeared to have "secret" clearance and access to sensitive documents on the Afghan war.
"We will do what is necessary to try to determine who is responsible," Pentagon press secretary Geoff Morrell said. "Until we know who's responsible, you have to hold out the possibility that there could be more information that has yet to be disclosed."
The documents, dating from 2004 to 2009, were released on whistleblower website Wikileaks on Sunday.
The most controversial allegations center around claims that Pakistan, a key US ally, allows its spies to meet the Taliban directly.
Afghanistan blamed its Western allies Tuesday for having an incoherent approach to insurgency.
"Having a contradictory and unclear policy towards those forces who have used terrorism as a tool of interference and destruction against others has had disastrous consequences," the National Security Council in Kabul said in a statement, referring to Pakistan.