In the Suruga district of the city, the temperature hit 37.6 degrees just before 1 p.m. that day.According to the Saitama prefectural government, a 65-year-old woman was discovered unconscious in a light passenger car in a parking lot in Koshigaya, Saitama Prefecture, on the evening of June 17. She was also pronounced dead at a hospital.Heatstroke is believed to have caused her death.In the village of Tsumagoi in Gunma Prefecture, a woman, 96, was taken to a hospital with suspected heatstroke after being found collapsed in a field at 3:10 p.m., according to the Agatsuma Fire Department. She was later confirmed dead.According to the Japan Meteorological Agency, the Kanto-Koshin region was particularly sunny from the morning on June 17, and temperatures soared especially in inland areas where winds were weak.More areas on June 18 will be sunny with high temperatures. Daytime highs of 37 degrees are expected in Gifu city and Nagoya in central Japan, and 36 degrees in Kyoto and Nara in western Japan.The agency said extremely hot days are expected to continue in various areas until around June 20. It is urging the public to take precautions against heatstroke.