North Korea will send thousands of military construction workers and deminers to Russia

North Korea says it righted a capsized destroyer and moored it at a pier in the northeastern port of Chongjin as it continues to repair a new warship leader Kim Jong Un has described as a significant asset for his nuclear-armed military

North Korean leader Kim Jong Un said the incident "was a criminal act.”

North Korean leader Kim Jong Un said a "serious accident" affected the launch of the country's newest warship on Wednesday.

Kim toured the vessel and observed the weapons tests, according to the state-run Korean Central News Agency.

North Korean leader Kim Jong Un reportedly oversaw the test of a supersonic cruise missile fired from a new battleship -- the destroyer Choe Hyon -- this week.

North Korean authorities confirmed for the first time that the country's forces fought against Ukrainian troops in Russia's Kursk region.

Maj. Oleh Shyriaiev's first experience of North Koreans came at the contact line near Kruglenkoe -- a village around 8 miles from the Ukrainian border in Kursk.

The G7 called on Friday for North Korea to "abandon" its nuclear program.

North Korea's Foreign Ministry said that its "nuclear armed forces will exist forever as a powerful means of justice," according to state media.

"South Korean military has increased surveillance and maintaining readiness posture in close cooperation with the U.S.," South Korea's Joint Chiefs said on Monday.

"South Korean military has increased surveillance and maintaining readiness posture in close cooperation with the U.S.," South Korea's Joint Chiefs said on Monday.

ABC News foreign correspondent Britt Clennett sat down with North Korean defectors Ryu Seong-hyeon and Pak Yusung in Seoul, South Korea.

Former North Korean soldiers spoke with ABC News about their military service.

Over 12,000 North Korean troops are estimated to be fighting against Ukrainian forces in Russia’s Kursk region, the United Nations Security Council learned last week.

North Korea launched "several short-range ballistic missiles," that landed in the Sea of Japan Tuesday morning local time, South Korea's Joint Chiefs of Staff said.

North Korea's state-run Korean Central News Agency claimed a successful test of a new type of intermediate-range hypersonic ballistic missile.

North Korea's state-run Korean Central News Agency said the successful test took place on Monday.

The last time North Korea test-fired a ballistic missile was Nov. 5, just before the U.S. presidential election.

The JCS said the South Korean military has heightened surveillance for additional launches and maintaining a readiness posture to share info with the U.S. and Japan.

Ukrainian special forces have released several excerpts from a purported diary it said was found on a North Korean soldier killed in front-line fighting in Russia.

Ukrainian President Volodymyr Zelenskyy said more than 3,000 North Korean soldiers have been killed or wounded fighting for Moscow in Russia's western Kursk region.

North Korea may dispatch more troops to Russia despite casualties, South Korea’s National Intelligence told lawmakers during a briefing Thursday.

A senior Russian general was killed in a bomb blast in a residential neighborhood in Moscow, Russian media reported early Tuesday.

Ukraine's intelligence services released new information Tuesday about the conduct of North Korean troops now fighting alongside Russian forces in the Kursk region.

A senior Russian general was killed in a bomb blast in a residential neighborhood in Moscow, Russian media reported early Tuesday.

The Ukrainian Defense Ministry's Main Directorate of Intelligence said on Monday that at least 30 North Korean soldiers were killed and wounded in weekend battles.

President Yoon Suk Yeol of South Korea declared martial law late Tuesday, before withdrawing troops hours later.

President Yoon Suk Yeol of South Korea declared martial law late Tuesday, before withdrawing troops hours later.

Shenghua Wen allegedly moved items to North Korea by concealing them in shipping containers from Long Beach, California, through Hong Kong and then North Korea.

President Yoon Suk Yeol of South Korea declared martial law late Tuesday, before withdrawing troops hours later.

Prosecutors say Shenghua Wen was allegedly moving items to North Korea by concealing them in shipping containers.

President Joe Biden met with Chinese President Xi Jinping on the sidelines of the APEC conference in Lima, Peru -- their last meeting of Biden’s presidency.

Some 50,000 Russian and North Korean troops are preparing a new counteroffensive in Russia’s western Kursk region, multiple Ukrainian military sources told ABC News.

ABC News’ Ian Pannell reports on Russia preparing for a new offensive against Ukrainian forces.

Russia has reportedly gathered a force of 50,000 soldiers, including thousands of North Korean troops, to reclaim parts of Russia’s Kursk region that were seized by Ukraine. 

Some 50,000 Russian and North Korean troops are preparing a new counteroffensive in Russia’s western Kursk region, multiple Ukrainian military sources told ABC News.

The launches come days after a trilateral military exercise run by the U.S., South Korea and Japan, according to the U.S. Indo-Pacific Command.

North Korea on Tuesday test-launched several short-range ballistic missiles, neighboring South Korea and Japan said.

NATO confirmed on Monday that North Korean troops had been deployed to fight alongside Russian troops in the Kursk region.

ABC News’ Patrick Reevell talks about what the escalation of troops by North Korea and Russia could mean in Ukraine, as well as in Asia.

Just days before the United States’ presidential election, North Korea conducted a new provocation by test-launching an intercontinental ballistic missile believed to be capable of reaching the U.S.

ABC News’ Luis Martinez reports on North Korea confirming it launched an intercontinental ballistic missile that traveled for about 90 minutes before dropping in the Sea of Japan.

A North Korean ballistic missile launch was intended as a message to "rivals" who have "escalated" regional tensions, according to leader Kim Jong Un.

A North Korean ballistic missile launch was intended as a message to "rivals" who have "escalated" regional tensions, according to leader Kim Jong Un.

North Korea's Foreign Minister Choe Son-hui left Pyongyang on Monday night for an official visit to Russia, North Korean state-controlled media reported.

The Pentagon reports that around 10,000 North Korean troops are training in Russia and may be deployed to Ukraine soon. President Joe Biden has labeled this situation "very dangerous." 

ABC News’ Ian Pannell reports on the latest deployment in the Kursk region, the area within Russia where Ukraine has been waging an assault.

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

Refuse from a North Korean "trash balloon" landed inside the South Korean presidential compound in the capital Seoul amid rising tensions between the two neighbors.