Fears over new North Korean rubbish balloon launches toward South

Balloons filled with rubbish have landed in South Korea (Yonhap via AP, File)

South Korea is monitoring an expected change in the wind direction that could allow North Korea to send more rubbish-carrying balloons across their heavily armed border, in their latest bout of tit-for-tat psychological warfare.

Last week, North Korean leader Kim Jong Un and Russian President Vladimir Putin signed a major defence deal that observers worry could embolden Mr Kim to direct more provocations at South Korea.