South Korea Fires Warning Shots at North’s Troops Crossing Border BloombergNorth Korea sends more trash balloons as Kim’s sister warns of ‘new counteraction’ CNNSouth Korea resumes broadcasting anti-North Korea propaganda at border in response to trash balloons Yahoo! VoicesNorth Korea Sent Excrement Balloons. South Korea’s Response: Blasting BTS Hits. The Wall Street JournalS Korea says it fired warning shots after N Korean soldiers crossed border Al Jazeera English