U.S. Defense Secretary Lloyd Austin said Wednesday there is evidence that North Korea has sent troops to Russia, as South Korea’s spy chief told lawmakers that 3,000 North Korean troops are in the country receiving training on drones and other equipment before being deployed to battlefields in Ukraine.

Defense Secretary Lloyd Austin confirmed Wednesday the U.S. has evidence that North Korean troops are in Russia.

Defense chief Lloyd Austin says the U.S. sees evidence that Kim Jong Un has sent troops to bolster Vladimir Putin's army amid the ongoing invasion of Ukraine.