South Korea sanctioned two Russian ships linked to North Korea’s arms trade with Moscow on Tuesday, as well as Russian individuals and companies allegedly involved in Pyongyang’s deployment of overseas information technology workers.

Alongside the unilateral sanctions, Seoul’s foreign ministry issued a press release calling on Russia to immediately cease “illegal cooperation” with North Korea, especially military cooperation in violation of U.N. Security Council resolutions.

South Korea’s designation of the Russian-flagged Lady R and Angara comes after the U.S. previously sanctioned the vessels for their work with the Russian military in connection with the Ukraine war, allegingthat they facilitated