The death toll in flooding and landslides resulting from heavy rains in South Korea rose to 49 on Thursday, while several people remained unaccounted for, dpa reported.
The national emergency authority in Seoul said tens of thousands of troops were helping with rescue and cleaning-up operations.
A new landslide, this time in northern Kyonggi Province claimed the lives of four people, a spokesman said.
Landslides on a hill in the south of Seoul and in Chunchon some 100 kilometres north-east of the capital caused the deaths of at least 29 people on Wednesday.
Police and emergency services are being supported by 46,000 soldiers, who are largely involved in clearing tonnes of mud, according to the Defence Ministry in Seoul.
In southern Seoul many houses and streets remain under water, and almost 10,000 people in Seoul and Kyonggi are reported to be homeless.
The weather office said the rainfall in Seoul on Wednesday, at 300 millimetres, was the heaviest on a July day since records began in 1907.
Since Tuesday, 536 millimetres have fallen - the largest ever fall in a three-day period.