Egypt's interior ministry released on Thursday 146 prisoners upon a presidential pardon, and 315 others were released conditionally.
The releases are a continuation of the president's decision to release prisoners who meet release conditions on the occasion of Egypt's 68th Police Day, marked on 25 January, the ministry said in a statement.
A list of those released was not immediately available.
In February, the interior ministry released 498 prisoners upon a presidential pardon and conditional releases in commemoration of the 68th Police Day.
According to the Egyptian constitution, the president can issue pardon decrees for prisoners who had received final court rulings that cannot be further appealed.