Japan has been struck by torrential rain since Saturday and the Kyushu island is the most affected. At least 62 people died and over a dozen more are missing as a result of natural disasters, according to the latest data.
The media reported most casualties in the Kuma village of the Kumamoto prefecture, located in the centre of Kyushu.
The Fire and Disaster Management Agency of the country said that over 4,700 houses have been flooded across Japan as of Thursday.
Emergency workers and 10,000 soldiers are deployed in the affected area, as rains are moving into eastern and central parts of the Japanese archipelago.