A reporter for the state-run channel Rossiya said Ukraine had hosted a secret U.S.-run detention center for Afghan and Iraqi prisoners in a military garrison in the Kyiv region.
Ukrainian Defense Ministry spokesman Andriy Lysenko said the allegations were a "cheap trick."
A Swiss newspaper, "Sonntagsblick," printed similar claims in January.
Allegations of secret CIA prisons in Europe first appeared in the "Washington Post" in November. The New York-based Human Rights group identified Romania and Poland as possible hosts of the detention facilities. Both countries issued denials.
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