A CIA website was apparently knocked out of commission by hackers on Wednesday, US time.
The US spy agency's cia.gov website stopped responding and members of a Lulz Security hacker group claimed credit in a message at microblogging service Twitter.
Attempts by AFP to reach the website were met with a message saying the seb page was not available.
"Tango down - cia.gov," the Twitter message read. "For the lulz."
A CIA spokesman was not available for comment.