The whole of Korea swelters in unseasonably hot weather. Temperatures in Daegu reached 37.4 degrees Celsius on Saturday, a new record for the hottest weather in May since records began 107 years ago.
On the same day, Seoul saw the hottest May day in 64 years with 33.3 degrees.
China and Japan are also affected. The mercury reached 38.6 degrees in Beijing on Thursday last week, the highest for May since 1951. In Hita, Oita, in Japan on Saturday, the mercury climbed to 35.6 degrees.
The Korea Meteorological Administration says warm winds from the southwest brought the heat wave to the region, pushed by a high-pressure air mass lingering south Jeju.
Daegu sits in a basin which traps the hot air, making it the hottest place in the country during this heat wave.
Rain will bring some relief early this week, before the temperatures soar again, the KMA said.