Iraqi authorities have freed more prisoners under a national reconciliation plan announced last week by Prime Minister Nouri al-Maliki.
Several hundred detainees were released Thursday from the U.S.-run Abu Ghraib prison, west of Baghdad, and other facilities across the country.
U.S. officials say more prisoners will be freed Friday.
Some 600 prisoners were released last week.
Mr. Maliki has promised to free 2,500 prisoners by the end of the month to foster "reconciliation and national dialogue."
Authorities say those being freed are not involved in violent crimes or had been detained by mistake.
Some information for this report was provided by AFP and Reuters.