Screengrab from handout video released by a local resident and received via Kyodo on July 3, 2021 shows a mudslide that hit a residential area in Atami , Shizuoka Prefecture, Japan in this image released by Kyodo/Handout via REUTERS

Houses and cars damaged by a mudslide following heavy rain are seen at Izusan district in Atami, Japan July 3, 2021. Kyodo/via REUTERS

Rescue workers help a resident evacuate from a mudslide site following heavy rain at Izusan district in Atami, Japan July 3, 2021. Kyodo/via REUTERS ATTENTION

Police officers conduct search and rescue operation around a destroyed car at a mudslide site caused by heavy rain at Izusan district in Atami, west of Tokyo, Japan July 4, 2021, in this photo taken by Kyodo. Kyodo/via REUTERS

A Japan Coast Guard vessel conducts search and rescue operation on the sea near the site of a mudslide caused by heavy rain in Atami, Japan July 4, 2021. Courtesy 3rd Regional Coast Guard Headquarters - Japan Coast Guard/Handout via REUTERS

Rescuers conduct rescue and search operation at a mudslide site caused by heavy rain at Izusan district in Atami, west of Tokyo, Japan July 6, 2021, in this photo taken by Kyodo. Kyodo/via REUTERS

Firefighters conduct search and rescue operation at a mudslide site caused by heavy rain at Izusan district in Atami, west of Tokyo, Japan July 4, 2021, in this photo taken by Kyodo. Kyodo/via REUTERS

An aerial view shows the site where believed to be started a mudslide near a solar photovoltaic power facility and houses at Izusan district in Atami, west of Tokyo, Japan July 3, 2021, in this photo taken by Kyodo. Picture taken July 3, 2021. Kyodo/via REUTERS

An aerial view shows the site of a mudslide caused by heavy rain at Izusan district in Atami, Japan July 3, 2021. Kyodo/via REUTERS

A police officer with a search and rescue dog works at the site of a mudslide caused by heavy rain at Izusan district in Atami, Japan July 4, 2021. Kyodo/via REUTERS

Police officers conduct search and rescue operation at a mudslide site caused by heavy rain at Izusan district in Atami, west of Tokyo, Japan July 4, 2021, in this photo taken by Kyodo. Kyodo/via REUTERS

Police officers conduct search and rescue operation at a mudslide site caused by heavy rain at Izusan district in Atami, west of Tokyo, Japan July 4, 2021, in this photo taken by Kyodo. Kyodo/via REUTERS

Japan Coast Guard vessels conduct search and rescue operation on the sea near the site of a mudslide caused by heavy rain in Atami, Japan July 4, 2021. Courtesy 3rd Regional Coast Guard Headquarters - Japan Coast Guard/Handout via REUTERS

Rescuers conduct rescue and search operation at a mudslide site caused by heavy rain at Izusan district in Atami, west of Tokyo, Japan July 6, 2021, in this photo taken by Kyodo. Kyodo/via REUTERS

Houses damaged by a mudslide are seen following heavy rain at Izusan district in Atami, Japan July 3, 2021. Kyodo/via REUTERS

Houses damaged by a mudslide following heavy rain are seen at Izusan district in Atami, Japan July 3, 2021. Kyodo/via REUTERS

Houses damaged by a mudslide are seen following heavy rain at Izusan district in Atami, Japan July 3, 2021. Kyodo/via REUTERS

A damaged bus and debris of the houses are seen at a mudslide site following heavy rain at Izusan district in Atami, Japan July 3, 2021. Kyodo/via REUTERS

Police officers conduct search and rescue operation at a mudslide site caused by heavy rain at Izusan district in Atami, west of Tokyo, Japan July 4, 2021, in this photo taken by Kyodo. Kyodo/via REUTERS

A Japan Coast Guard vessel conducts search and rescue operation on the sea near the site of a mudslide caused by heavy rain in Atami, Japan July 4, 2021. Courtesy 3rd Regional Coast Guard Headquarters - Japan Coast Guard/Handout via REUTERS

Police officers wearing muddy protective face masks conduct rescue and search operation at the site of a mudslide caused by heavy rain at Izusan district in Atami, Japan July 4, 2021. Kyodo/via REUTERS

Members of Japanese Self-Defence Forces and firefighters conduct search and rescue operation at a mudslide site caused by heavy rain at Izusan district in Atami, west of Tokyo, Japan July 4, 2021, in this photo taken by Kyodo. Kyodo/via REUTERS

Members of Japanese Self-Defence Forces (JSDF) and rescue workers help residents evacuate from the site of a mudslide caused by heavy rain at Izusan district in Atami, Japan, in this handout photo taken by JSDF on July 3, 2021 and released by the Joint Staff Office of the Defense Ministry of Japan on July 4, 2021. Joint Staff Office of the Defense Ministry of Japan/Handout via REUTERS

A resident looks from a window at houses that have been damaged by a mudslide following heavy rain at Izusan district in Atami, Japan July 3, 2021. Kyodo/via REUTERS

Members of Japanese Self-Defence Forces conduct rescue and search operartion at a mudslide site caused by heavy rain at Izusan district in Atami, west of Tokyo, Japan July 5, 2021, in this photo taken by Kyodo. Kyodo/via REUTERS

Police officers conduct a rescue and search operation at the site of a mudslide caused by heavy rain at Izusan district in Atami, Japan July 5, 2021, in this photo taken by Kyodo. Kyodo/via REUTERS