東海の4中学校20人、熱中症疑いで搬送 各地で30度超え mainichi.jp - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from mainichi.jp Daily Mail and Mail on Sunday newspapers.
The mercury rose to as high as 40.4 degrees Celsius in the city of Kiryu, Gunma Prefecture, on Friday, marking the highest level in the country this year.