Ukraine intelligence confirms Russia enhanced North Korean missiles to deadly accuracy while Pyongyang supplies troops and weapons, raising nuclear concerns.

Two weeks after President Donald Trump set a 14-day timeline for determining the willingness of his Russian counterpart to end the conflict in Ukraine, he says he is coming to believe Vladimir Putin doesn’t care about the human cost of his war.

Ukrainian President Volodymyr Zelenskiy said on Wednesday Russia was determined to sow chaos in and destroy the south of his country as well as nearby Moldova and Romania, and called for increased pressure on Moscow to prevent further military threats.

Russian forces have advanced into Dnipropetrovsk and Sumy regions, in fresh bid for Ukrainian land beyond what Moscow's already annexed.

The fate of Iran's uranium enrichment is at the heart of the disagreement between Washington and Tehran: U.S. President Donald Trump says that Iran cannot be allowed to develop nuclear weapons, while Supreme Leader Ayatollah Ali Khamenei says Iran cannot abandon enrichment.

North Korean leader Kim Jong Un said in a message to Russian President Vladimir Putin that his country will always stand with Moscow, state media reported on Thursday.

To address concerns voiced by Trump that Denmark could not defend Greenland in the face of Russian or Chinese confrontation, Frederiksen says it would be a priority for Denmark to step up its defense role in the Arctic in partnership with other NATO countries as well as to do more on Europe's eastern frontier.

The European Union announced a new package of sanctions against Russia on Tuesday, saying that Moscow’s daily deadly attacks against Ukraine show that it is not interested in peace – despite recent diplomatic efforts.

MOSCOW (Reuters) -Russian President Vladimir Putin said on Wednesday that special attention in the country's new arms programme should be paid to the nuclear triad - land-based, sea-based and aircraft-launched weapons.

Apart from drones, 20 missiles of various types were fired at different parts of Ukraine, according to the air force, which said the barrage targeted mainly central and western areas of Ukraine.

"The recovery of Russian-American relations is still a long way off," ambassador Alexander Darchiev told TASS news agency, adding that the rapprochement was being slowed by the so-called U.S. "deep state" and anti-Russian "hawks" in Congress.