SEOUL/TOKYO (Reuters) -South Korea authorities evacuated more than 10,000 people and closed schools in flood-hit areas as tropical storm Khanun swept over the peninsula on Thursday, having pounded southern Japan over the past week. Downgraded from a typhoon to a tropical storm, Khanun made landfall on the southeast coast, and was heading towards the South Korean capital Seoul. Khanun could also strike North Korea's capital, Pyongyang, and state media there reported that the military and the ruli