Polish prosecutors have charged three former communist secret police agents with attempting to frame Blessed Jerzy Popieluszko before they abducted and murdered him.

The three were among four men convicted of Blessed Popieluszko's murder; all four were released early after controversial sentence revisions.

Marcin Golebiewicz, an official with the Commission for Investigating Crimes against the Polish Nation, said the agents faced up to three years' jail if convicted of creating false evidence under penal and criminal code provisions against "communist crimes and crimes against humanity."