Disruption to train and flight services is expected in western Japan from Saturday due to the approach of powerful Typhoon Haishen.
West Japan railway says it is considering suspending Sanyo Shinkansen bullet train services between Hiroshima and Hakata station all day Monday, and reducing trains between Shin-Osaka and Hiroshima Station.
A heat wave continues to grip western and eastern Japan, with the daytime temperature topping 39 degrees Celsius in Hyogo Prefecture in the west on Sunday.
Temperatures rose to 39.2 degrees in Hyogo's Nishiwaki City, and over 38 degrees in the town of Hatoyama in Saitama, as well as Takahashi City in Okayama, and Ogaki City in Gifu.