There is no obscurity about the identity of the British plane that dropped bombs on the edge of Vatican City on 1 March 1944 as this was explicitly acknowledged, at least in private, by the British Air Ministry as an accidental bombing when one of its aircraft on a bombing raid over Rome dropped its bombs too close to the Vatican wall.[23] It caused human casualties, killing a workman who was in the open and injuring a Dutch Augustinian in the College of Saint Monica. The six low-calibre bombs dropped also caused damage to the Palace of the Holy Office, to the Oratory of Saint Peter, and to the Pontifical Urbanian College on the nearby Janiculum Hill. Claims persist, nevertheless, that this was an Italian plane which was seen to strike an obstacle, perhaps a tree on the Janiculum, after which it jettisoned its bombs, but crashed after hitting a house on Via del Gelsomino with its wing.