In this aerial photo, a rescue helicopter hovers over an area devastated by a massive landslide in Hiroshima, western Japan, Wednesday, August 20, 2014. A several people died and at least a dozen are missing after rain-sodden hills in the outskirts of Hiroshima gave way early Wednesday in several landslides. (Photo by AP Photo/Kyodo News)

Japan Self-Defense Force soldiers search for survivors at the site of a landslide at Asaminami ward in Hiroshima, August 20, 2014. At least 36 people, including several children, were killed in Japan on Wednesday, when landslides triggered by torrential rain slammed into the outskirts of the western city of Hiroshima, and the toll could rise further, police said. (Photo by Toru Hanai/Reuters)

Police officers search for survivors at the site of a landslide at Asaminami ward in Hiroshima August 20, 2014. (Photo by Toru Hanai/Reuters)

A Japan Self-Defense Force soldier searches for survivors at a site where a landslide swept through a residential area at Asaminami ward in Hiroshima, western Japan, August 20, 2014. At least 36 people, including several children, were killed in Japan on Wednesday, when landslides triggered by torrential rain slammed into the outskirts of the western city of Hiroshima, and the toll could rise further, police said. (Photo by Toru Hanai/Reuters)

Japan Self-Defense Force (JSDF) soldiers search for survivors at a site where a landslide swept through a residential area at Asaminami ward in Hiroshima, western Japan, August 20, 2014. At least 36 people, including several children, were killed in Japan on Wednesday, when landslides triggered by torrential rain slammed into the outskirts of the western city of Hiroshima, and the toll could rise further, police said. Seven people were missing after a month's worth of rain fell overnight, loosening slopes already saturated by heavy rain over the past few weeks. (Photo by Toru Hanai/Reuters)

Japan Self-Defense Force (JSDF) soldiers search for survivors at a site where a landslide swept through a residential area at Asaminami ward in Hiroshima, western Japan, August 20, 2014. (Photo by Toru Hanai/Reuters)

A troop of police rescue personnel head out for rescue operation after a massive landslides swept through residential area in Hiroshima, western Japan, Wednesday, August 20, 2014. (Photo by Shinpei Hamaguchi/AP Photo/Kyodo News)

A dog takes a rest under a destroyed house at a site where a landslide swept through a residential area at Asaminami ward in Hiroshima, western Japan, August 20, 2014. (Photo by Toru Hanai/Reuters)

A dog takes a rest under a destroyed house at a site where a landslide swept through a residential area at Asaminami ward in Hiroshima, western Japan, August 20, 2014. (Photo by Toru Hanai/Reuters)

In this aerial photo, a survivor is lifted by a rescue helicopter from an area devastated by a massive landslide in Hiroshima, western Japan, Wednesday, August 20, 2014. (Photo by AP Photo/Kyodo News)

Japan Self-Defense Force (JSDF) soldiers and police officers carry the body of a victim in a plastic bag at a site where a landslide swept through a residential area at Asaminami ward in Hiroshima, western Japan, August 20, 2014. (Photo by Toru Hanai/Reuters)

Cars damaged by a landslide lie in mud and debris after heavy rains hit the city of Hiroshima, western Japan, on August 20, 2014. (Photo by AFP Photo/Jiji Press)

Members of police continue the search for missing people among the debris of houses destroyed by a landslide caused by torrential rain at the site of a landslide in a residential area on August 20, 2014 in Hiroshima, Japan. At least 18 people were confirmed dead and several unaccounted people are missing after torrential rain caused flooding and landslides in the city of Hiroshima early today. (Photo by Buddhika Weerasinghe/Getty Images)