An Italian court has issued three more arrest warrants for suspected CIA agents accused of helping to kidnap a Muslim cleric in 2003.
The authorities have already ordered the arrest of 19 people suspected of being involved in the abduction of Egyptian Osama Mustafa Hassan.
The suspects are accused of abducting Mr Hassan, also known as Abu Omar, and flying him to Egypt for interrogation.
Correspondents say the case has soured relations between Washington and Rome.
Italy says the alleged operation hindered Italian terrorism investigations.
No arrests have been made. None of the suspects is currently believed to be in Italy.