Yonhap news agency says North Korean trash-carrying balloons have fallen on the compound of South Korea's presidential office.
Yonhap gave no further details. But other South Korean media reported the balloons have caused no damages.
South Korea's military earlier said North Korea flew more balloons likely carrying trash toward South Korea on Wednesday. It said the North Korean balloons were flying north of Seoul on Wednesday morning after crossing the border.
North Korea flew more balloons likely carrying trash toward South Korea on Wednesday, Seoul officials said, days after South Korea boosted its frontline broadcasts of K-pop songs and propaganda messages across the rivals' heavily armed border.
The tit-for-tat Cold War-style campaigns between the Koreas are inflaming tensions on the Korean Peninsula, with the rivals threatening stronger steps and warning of grave consequences.
South Korea's Joint Chiefs of Staff said in a statement the North Korean balloons were flying north