An operation to rescue three of its crew members is underway.

Russia and other foreign adversaries are ramping up efforts to spread conspiracy theories and disinformation about the coronavirus pandemic in the U.S.

Former national security adviser H.R. McMaster appeared on ABC News' "Powerhouse Politics" podcast.

American F-22s identified the planes flying within 30 miles of Alaska, but they did not breach U.S. airspace.

An agreement could mean that Trump and Putin meet in the coming weeks.

Alexey Navalny spoke to “60 Minutes” about the August incident that left him hospitalized and critically ill, saying, “I’m sure [Vladimir Putin] is responsible.”

Russian military vessels in the Caspian Sea carried out training against a potential threat from the air.

Cease-fire in their conflict over Nagorno-Karabakh starts from midnight.

EU sanctions six top Russian officials including senior officials in president Vladimir Putin's office over Novichok poisoning of opposition leader Alexey Navalny

Russia brokered a cease-fire to end to the hostilities in Nagorno-Karabakh.

U.S. and Russian negotiators have agreed in principle to freeze their nuclear warhead stockpiles in a bid to salvage their last remaining arms control pact before it expires next year

Germany and its allies at a meeting of the global chemical weapons watchdog have called on Russia to fully investigate and explain how opposition leader Alexei Navalny was poisoned with a military-grade nerve agent

The talks Monday are a follow-up on negotiations in Austria this summer.

The editor of a Russian news website has died after setting herself on fire outside a regional police headquarters the day after officers searched her residence

ABC News’ Ian Pannell reports on Russian opposition leader Alexei Navalny’s accusation that President Vladimir Putin is behind his poisoning.

Russian opposition leader Alexei Navalny has accused Russian President Vladimir Putin of being behind his poisoning with a Soviet-era nerve agent

As Alexei Navalny recovers in Germany after he was poisoned by a Russian nerve agent, he has accused the Russian president of being behind the act.

The Russian opposition leader used his first interview since recovering to say he believes Vladimir Putin is responsible for the attack.

A Russian court sentenced Yuri Dmitriyev, a gulag historian who uncovered Stalin-era graves, to 13 years prison, adding 10 years to his earlier sentence.

Russian opposition leader Alexei Navalny has confirmed reports that German Chancellor Angela Merkel visited him in a Berlin hospital where he was being treated for what German authorities determined was nerve agent poisoning

Alexei Navalny spent nearly three weeks in a coma after suspected poisoning.

Russian opposition leader Alexei Navalny, who is in Germany recovering from what authorities there determined to be nerve agent poisoning, thanked Russian pilots and paramedics for acting quickly after he fell into a coma on a flight from Siberia

The German hospital treating Russian opposition leader Alexei Navalny for poisoning says his condition improved enough for him to be released

Russian President Vladimir Putin is offering an unusual gift to mark the U.N.'s 75th anniversary

German media are reporting that IT experts investigating a cyberattack that paralyzed computer systems at a major hospital in western Germany say one of the trails they are following leads to Russia

Russian opposition leader Alexei Navalny has demanded that Russia return the clothes he was wearing on the day he fell into a coma, calling it a “crucial piece of evidence” in his poisoning

Traces of the Novichok nerve agent used to poison Russian opposition leader Alexey Navalny were found on a bottle in his hotel room in Siberia, his team said.

Colleagues of Vladimir Putin’s biggest political rival, who doctors say was poisoned, gathered evidence that they say included a water bottle that showed traces of poison.

Colleagues of Russian opposition leader Alexei Navalny say a bottle of water with a trace of the Novichok nerve agent was found in his hotel room in the Siberian city of Tomsk after he fell ill on a flight to Moscow last month

Leading Republican congressmen submitted a resolution calling on Russia to release Trevor Reed, an ex-U.S. Marine jailed in Russia.

Poisoned Russian opposition leader Navalny’s condition has further improved.

Russian opposition leader Alexey Navalny on Tuesday posted a message for the first time since his suspected poisoning.

Alexey Navalny posted a photo on Instagram of himself surrounded by his wife and two children in a bed at Berlin's Charité hospital.

Doctors say the Russian opposition figure was poisoned with a nerve agent.

Russia's leading opposition figure was poisoned with Novichok, Germany says.

Early official results from regional elections across Russia show that the main Kremlin party has retained its dominance, although the opposition made gains in some areas

The Kremlin's desperate attempt to silence its fiercest critic, Aleksey Navalny, has not changed his stature, even as he lies in a hospital bed in Berlin.

Russia's most prominent opposition leader, Alexey Navalny, has been taken out of a medically-induced coma at the German hospital where he's being treated.

The office of the U.N. human rights chief is calling on the Russian government to carry out or cooperate with an independent investigation of the reported poisoning of Russian opposition leader Alexei Navalny

Germany raises pressure on Russia over the poisoning of Alexei Navalny.

What is a Novichok nerve agent, the chemical weapon Germany says was used against Russian on opposition leader Alexey Navalny.

Russian opposition leader Alexey Navalny is in serious condition after the German government revealed he was attacked with a deadly nerve agent.

Alexey Navalny, the Russian opposition leader and one of Vladimir Putin's fiercest critics, was poisoned with a Novichok nerve agent, the German government said.

German Chancellor Angela Merkel said German tests confirmed that the leading critic of President Putin, Alexey Navalny, was poisoned with the deadly nerve agent Novichok.

German government shares evidence that Russian opposition leader Alexei Navalny was poisoned by a nerve agent.

The Russian military is blaming U.S. troops for a collision between Russian and U.S. military vehicles in eastern Syria

Russian authorities say they haven't found any indication so far that opposition leader Alexei Navalny’s coma has been caused by a criminal act

President Vladimir Putin said Russia had created a reserve of security forces to send to Belarus if protests seek to oust Alexander Lukashenko.

A video posted by a reportedly pro-Kremlin propaganda site showed Russian forces side-swiping a U.S. armored vehicle at high speed and injuring four.

The suspected poisoning of Russia's best-known opposition leader Alexey Navalny is the latest to happen to a long line of Kremlin opponents.