 Military officials are warning residents of the South Korean capital to be on the lookout for falling debris. The South earlier warned it would conduct loudspeaker broadcasts in a fuller manner and take other stronger steps if North Korea continues provocations like these balloon launches. Since late May, North Korea has floated numerous balloons in a series of launches to drop scraps of cloth, cigarette butts, waste batteries, even manure on South Korea, though they caused apparently no major damage in the South.