North Korea has launched a new intercontinental ballistic missile in its first test in almost a year of a weapon designed to threaten the U.S. mainland and occurring days ahead of the U.S. election.

The United States, South Korea and Japan had also identified the weapon as an ICBM and condemned the launch as raising tensions. The launch came as Washington warned that North Korean troops in Russian uniforms are heading toward Ukraine, likely to augment Russian forces and join the war.