More than 22,000 people were taken to hospitals due to the heat wave across Japan last week and 65 of them died, both record-high figures since comparable information became available in 2008, preliminary government data showed Tuesday.

The fatalities were recorded in 28 of the 47 prefectures in a seven-day period through Sunday as most of the Japanese archipelago experienced unusually high temperatures, according to the Fire and Disaster Management Agency.

On Tuesday, the mercury climbed across the nation, hitting 39.3 Celsius in Mino, Gifu Prefecture, while at least two people died in Kagawa and Kochi prefectures after showing symptoms of heatstroke.