ATAMI, Japan/TOKYO -- The search for survivors of Saturday's deadly mudslide continues in the Japanese resort city of Atami, with authorities releasing the names of 64 people still unaccounted for as of Monday.
First responders have rescued 26 people so far from the destruction caused by a torrent of mud in the hilly Izusan section of the city, southwest of Tokyo. Four people have been found dead.
The cause of the disaster remains under investigation but Shizuoka Prefecture Gov. Heita Kawakatsu says rain soaking into the soil over a long period of time was "without a doubt" a factor.
© Kyodo A dog aids in the search for buried victims on July 5.
© Kyodo First responders search house to house for trapped residents. Photo taken on July 4.
© Kyodo An onlooker watches rescue efforts on July 5.
(Photo courtesy of Shizuoka Prefecture) This aerial photo from July 4 shows the hillside gouged out by a flow of rain-soaked earth.
© Kyodo The mud cut a path of destruction through the hot spring resort, reaching to the edge of the bullet train line (far left). Photo taken on July 5.
© Kyodo Self-Defense Forces personnel rescue a resident on July 4.
© Kyodo 
© Kyodo First responders use heavy equipment to dig through mud-choked streets. Photos taken on July 4 and July 5.
(Photo by Chiaki Kameda) Shizuoka Prefecture Gov. Heita Kawakatsu visits Atami on July 5.
(Photo by Kai Fujii) Supplies are brought to a hotel housing residents displaced by the disaster.
(Photo by Rie Ishii) Crushed buildings, a vending machine and other debris lie strewn across a street. Photo taken July 3.