North Korea trash balloons disrupt flights in Seoul, cause rooftop fire
Balloons have affected traffic at South Korea’s main international airport, Incheon, several times in recent weeks.

In Gyeonggi, a province near Seoul, a balloon caught fire on top of a residential building. Firefighters extinguished the blaze, an official at the Gyeonggi Northern Fire and Disaster Headquarters said.
South Korea’s military said some trash balloons were equipped with timed poppers that could cause fires.
“A timer is attached to the trash balloons, which has the effect of popping the balloons and spreading the trash after a certain period of time has passed,” Lee Sung-jun, a spokesperson for South Korea’s Joint Chiefs of Staff, told a briefing.
Lee said 480 balloons had landed mostly carrying paper and plastic trash in South Korea as of Thursday.
On Wednesday, North Korean balloons had landed in the vicinity of the heavily guarded presidential office in Seoul.