US president says deep animosity between Putin and Zelenskyy remains the main obstacle to ending the war, adding that the administration is tackling multiple global crises at once.

The U.S. announced sanctions in October on Lukoil and Rosneft in an effort to tighten financial pressure over Russia's war in Ukraine. Britain followed with its own restrictions, targeting both companies and dozens of so-called shadow fleet tankers accused of helping Russia evade existing limits on oil exports.

Ukraine-Russia war latest: Zelensky agrees to Trump-backed plan for response to Russian ceasefire violations - Limited ceasefire requested by Trump ends as Moscow resumes attacking Kyiv and other majo

The president said he persuaded Russia’s Vladimir Putin to stop striking Ukraine’s energy grid during a frigid period, but missiles fell on Kyiv hours later.

President Donald Trump says he asked Russian President Vladimir Putin not to target the Ukrainian capital of Kyiv for one week as the region experiences frigid temperatures and Putin agreed, but Russia hasn't confirmed that.

Russia attacked Ukraine’s capital Kyiv with ballistic missiles early on Tuesday, local authorities reported, following a week-long pause in strikes on major cities and infrastructure agreed to by Russia and the US as Ukraine grapples with plummeting winter temperatures.

Trump envoy reports "productive" meetings with Russian envoy on Ukraine peace deal, days after touting progress made toward peace after years of war.

Russia has proposed a de facto one-year extension of New START, but the president has yet to commit.