Torrential rain hit southwestern Japan on Wednesday morning, prompting local governments to instruct thousands of people to evacuate as rivers overflowed and at least three people were left dead in what the weather agency called an “unprecedented downpour.” In Saga Prefecture, in the Kyushu region, Saga Station was flooded and a number of vehicles were seen submerged. Landslides were confirmed in the city of Takeo and rivers in Ogi and Imari overflowed, flooding nearby farm fields.