Some of the aerial bombs that fell on Madrid on 16 November 1936 hit the Museo del Prado and the surrounding area. Due to the precautionary measures taken by museum staff prior to this date, the only object affected inside the building was a 16th-century relief, but the fabric of the building itself was affected by the blast waves of nearby explosions, particularly the walls. A propaganda war resulted from the inevitable amazement and indignation that this event aroused, of which diagrams, notarial documents and photographs have survived. Because the war was still in progress, the building could not be completely repaired, and efforts were intensified with regard to the protection and improvement of the Museum, particularly regarding appropriate levels of protection for the works of art.