South Korean authorities suspect that a North Korean trash balloon ignited a minor forest fire near the border on Monday, highlighting potential dangers from the balloons that have caused at least one other fire elsewhere.

Smoke was reported rising from a wooded area in Paju at 11:45 a.m. on Monday, and firefighters quickly deployed to the scene and brought the blaze under control within around 20 minutes, the North Gyeonggi Province Fire and Disaster Headquarters told NK News.