Russia's point man for arms control cautioned Donald Trump's incoming administration on Friday against resuming nuclear testing, saying Moscow would keep its own options open amid what he said was Washington's "extremely hostile" stance.

Russia warns of potential nuclear testing in response to Trump's stance, raising concerns about global security.

Deputy Foreign Minister of the Russian Federation Sergei Ryabkov said American policy is "extremely hostile" toward Russia.

Is the world nearing a nuclear showdown? Russia has issued a dire warning to the U.S., raising concerns about the future of the Comprehensive Nuclear Test Ban Treaty. Russian Deputy Foreign Minister Sergei Ryabkov has called U.

Russia’s latest nuclear stance has sent shockwaves across the globe, with Washington closely watching. A senior Kremlin official hinted at the possibility of nuclear testing, citing hostile U.S. policies.

Russia's Deputy Foreign Minister, Sergei Ryabkov, has warned the incoming administration of Donald Trump against resuming nuclear weapons testing. He said that Moscow would consider its options in response to what he described as an "extremely hostile" approach from Washington.