At least 40 people were killed due to floods and landslides triggered by heavy rains in South Korea, Yonhap news agency said on Thursday.
Multiple landslides across the country also resulted in traffic chaos, power outages and flooded streets, roads and residential areas, the national emergency situations department said.
A landslide near Chuncheon, 85km east of Seoul, destroyed four residential buildings and a care home, leaving 13 people dead and 26 injured.
Another powerful mudslide from Mount Umyeon near southern Seoul buried dozens of village houses, killing at least 17.
Seven people drowned in the swollen Han river and three died when a factory roof collapsed.
The toll is likely to rise with dozens listed missing.