North Korea has denied U.S's claims that it's supplying artillery shells and ammunition to Russia for use in its war against Ukraine. Pyongyang has accused the United States of 'lying.' The denial from North Korea follows dozens of weapons tests, including short-range missiles that are likely nuclear-capable. Pyongyang said it was testing the missiles and artillery so it could “mercilessly” target South Korean and U.S. targets if it chose to.