SEOUL (Reuters) -- South Korea resumed loudspeaker broadcasts directed at North Korea on Sunday, its military said, following through on a warning demanding Pyongyang stop sending balloons carrying trash into the South. South Korea had warned the North it would take retaliatory measures which could include propaganda broadcasts from huge loudspeakers set up at the border. The broadcasts were made Sunday afternoon and whether more will follow depends on how North Korea responds, South Korea's military said. South Korea's broadcasts include world news and information about democratic and capitalist society with a mix of popular K-pop music. The sound is believed to travel more than 20 kilometers (12.4 miles) into North Korea.