North Korean leader Kim Jong Un's influential sister said Tuesday that the deployment of a U.S. aircraft carrier to South Korea would prompt Pyongyang to bolster its nuclear arsenal and ramp up military provocations.

Experts say North Korea could increase its weapons testing after the arrival of a US aircraft carrier last week. View on euronews

The powerful sister of North Korean leader Kim Jong Un has threatened a high-profile response to the arrival of a U.S. aircraft carrier in South Korea and other U.S. military activities