North Korea warned Friday that it would exercise its right to self-defense "more intensively" as it condemned recent joint air drills among South Korea, the United States and Japan.

The United States and its Northeast Asian allies on Wednesday conducted an aerial drill involving two American bombers after North Korea fired a hypersonic missile last week. Newsweek has contacted North Korea's embassy in Beijing,

The United States, South Korea, and Japan conducted joint air exercises involving B-1B bombers, F-15K, and F-2 fighters. The exercises were conducted in response to North Korea's recent launch of hypersonic and ballistic missiles.

South Korea, the United States and Japan on Wednesday held combined air drills, involving two B-1B bombers, officials said, following North Korea's recent launches of hypersonic and short-range ballistic missiles.