 The cover-up continued almost until the end of the Soviet Union, as in 1984 and 1985 the site was further covered with rubble and debris of several demolished buildings.Despite these efforts, in 1989 remains of more than 500 men, women and children were uncovered during excavation performed by a local branch of the Memorial society.Only 22 victims were identified by name and all were Polish citizens of either Polish or Ukrainian ethnicity.