New Zealand has deployed a ship to monitor North Korea’s maritime sanctions evasion activities for the first time, adding to growing international efforts to rein in the smuggling activities fueling Pyongyang’s nuclear ambitions.

HMNZS Aotearoa, New Zealand’s largest-ever military ship, set sail from Japan’s Yokosuka naval base to support the enforcement of U.N. sanctions against the DPRK, the Royal New Zealand Navy announced on social media on Tuesday.