North Korea said it will stop sending trash-carrying balloons into South Korea, claiming Sunday that its campaign left the South Koreans with “enough experience of how much unpleasant they feel.”

The North’s announcement came hours after South Korea said it would soon punish North Korea with “unbearable” retaliatory steps over its balloon activities and other recent provocations.

Observers say South Korea will likely restart front-line loudspeaker broadcasts into North Korea that include criticism of its abysmal human rights situation, world news and K-pop songs.