A Polish prosecutor says his office has opened an investigation into whether a Saudi man accused in the 2000 bombing of the USS Cole was mistreated in a prison that the CIA allegedly ran in Poland.

Prosecutor Jerzy Mierzewski told The Associated Press on Wednesday that events surrounding Abd al-Rahim al-Nashiri's detention will be handled as part of an ongoing investigation into Poland's involvement in the now-shuttered U.S. system of secret prisons around the globe. No charges have yet been filed.

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