The website of the U.S. Central Intelligence Agency (CIA) appeared to be offline Friday afternoon, shortly after a Twitter account associated with the hacker group “Anonymous” announced that it had been taken down.

Reached for comment by Raw Story, a CIA public affairs officer had no comment, but did note that the agency was “experiencing some problems with the servers.” A press officer also had no comment, and said that the website being down was “news to me.” A third request for comment, filed with another press officer, went without any reply.

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Russia Today was the first organization to report the alleged hack.

If hackers were indeed responsible for the website’s downtime Friday, it wouldn’t be the first instance: hackers with the now-dormant “Lulz Security” group said last June that they were responsible for taking down the CIA’s website, which is of little significance to agency operations.

(H/T: Russia Today)