North Korea drops trash balloons on the SouthExcrement, rubbish and propaganda leaflets... the BBC's Shaimaa Khalil explains. North Korea has dropped at least 260 balloons carrying rubbish in the South, prompting authorities to warn its residents to stay indoors. North and South Korea have both used balloons in their propaganda campaigns since the Korean War in the 1950s. South Korea's military had earlier said it was investigating whether there were any North Korean propaganda leaflets in the balloons. Republic of Korea or ROK is the official name of South Korea while the North is called DPRK or the Democratic People's Republic of Korea.
