Although the destruction at Nagasaki has generally received less worldwide attention than that at Hiroshima, it was extensive nonetheless. Almost everything up to half a mile from ground zero was completely destroyed, including even the earthquake-hardened concrete structures that had sometimes survived at comparable distances at Hiroshima. According to a Nagasaki Prefectural report "men and animals died almost instantly" within 1 kilometer (0.62 miles) of the point of detonation. Almost all homes within a mile and a half were destroyed, and dry, combustible materials such as paper instantly burst into flames as far away as 10,000 feet from ground zero. Of the 52,000 homes in Nagasaki, 14,000 were destroyed and 5,400 more seriously damaged. Only 12 percent of the homes escaped unscathed. The official Manhattan Engineer District report on the attack termed the damage to the two Mitsubishi plants "spectacular." Despite the absence of a firestorm, numerous secondary fires erupted throughout the city. Fire-fighting efforts were hampered by water line breaks, and six weeks later the city was still suffering from a shortage of water. A U.S. Navy officer who visited the city in mid-September reported that, even over a month after the attack, "a smell of death and corruption pervades the place." As at Hiroshima, the psychological effects of the attack were undoubtedly considerable.