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Glenn Greenwald / Laura Poitras / The Guardian / Reuters Edward Snowden, the former National Security Agency contractor, in a still image taken from a video during an interview with the Guardian in his hotel room in Hong Kong on June 6, 2013

Obama Administration officials are warning some foreign intelligence services that documents obtained by former NSA contractor Edward Snowden may detail their secret cooperation with the U.S.

The warnings come as the administration has been scrambling this week to contain fallout from allegations that the National Security Agency spied on foreign leaders. Now, the Office of the Director of National Intelligence is letting other intelligence services know that Snowden may have documents detailing their secret operations with the U.S. According to the Washington Post, one case involves a NATO country that helped American military intelligence gain information about Russia.

After absconding with an estimated 30,000 documents taken from a joint intelligence communications server and leaking details of NSA spying to the Post and Britain’s Guardian newspaper, Snowden has been living in Russia where he has been granted temporary asylum.

[Washington Post]