Up until now, Seoul has only provided humanitarian aid to Kyiv, though it has been reported the country has indirectly supplied artillery shells via the U.S."There are various options for providing weapons, and our position on the recent developments between Russia and North Korea depends on how Russia approaches the situation going forward," the unnamed official told Yonhap.The weapons that Seoul could potentially send to Ukraine include 155 mm artillery shells or air defense systems, government sources told Yonhap.Russian President Vladimir Putin said that Moscow would take decisions that are "unlikely to please South Korea" if Seoul decides to send arms to Ukraine. He also did not exclude the possibility of sending weapons to North Korea, based on the recently signed deal between the two countries.Under the new treaty, Russia and North Korea pledged to provide aid to one another if either is attacked, Putin said.Matthew Miller, the U.S.