Across South Korea, rain damage had been reported to 1,999 public structures and 2,238 private facilities, including farms, the interior ministry said.
While the rain has eased, the national weather agency has now issued a nationwide heatwave watch.
South Korean President Lee Jae Myung has ordered a thorough response to the disaster, his office said.
“As local heavy rains have become commonplace, customised measures based on regional characteristics are urgently needed,” said Kang Yu-jung, the spokesperson for Lee’s office.
“If serious laxity or mistakes are found in civil servants’ discipline, we will hold them accountable and thorough measures will be taken to prevent a recurrence.”
Lee, who took office in June, has promised to make the country safer and to prevent any repeat of the disasters in recent years that have often been blamed on the inadequate response by authorities.