REUTERS/Jacky ChenNorth Korean soldiers are seen on a boat on the banks of the Yalu River, near the North Korean town of Sinuiju, opposite to the Chinese border city of Dandong, October 6, 2014.
North Korea has fired artillery at a South Korean propoganda balloon, the Associated Press reports, to which South Korea fired back.
This is a developing story.
NOW WATCH: Briefing videos
Business Insider Emails & Alerts
Site highlights each day to your inbox.