2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/10812We discuss the properties of two peculiar galaxies (2-809 and 2-906) selected in the Hubble Deep Field as possible candidates to high-redshift (Z about 1) polar-ring galaxies. We found that the presence of polar-ring galaxies in a random deep field gives some support for a galaxy interaction rate steeply increasing with redshift.5 pages, 7 figures, latex. Accepted for publication in the Astronomy and AstrophysicsAstrophysicstext