Ukraine security talks may see breakthrough as U.S. NATO ambassador says 50-nation coalition nears agreement on comprehensive framework for peace deal and security guarantees.

U.S. and Ukrainian officials discussed "some ideas" to address the issue of territory during peace talks to end Russia's war on Ukraine, President Volodymyr Zelenskiy said on Tuesday, describing the matter as the biggest remaining obstacle in the process.

A CIA assessment concluded that Ukraine didn't try to kill Russian President Vladimir Putin at his country residence as alleged by the Kremlin, a source with knowledge of the matter told NBC News last week.

Leaders of Ukraine’s allies gathered Tuesday in Paris for key talks that could help determine the country’s security after any potential peace deal.

Ukrainian President Volodymyr Zelenskiy said on Monday he had appointed Canada's former Deputy Prime Minister Chrystia Freeland as his economic development adviser, citing her experience in attracting investment.

Ukrainian drone strikes killed two people and wounded two others, including a 4-year-old child, in Russia’s Belgorod and Kursk regions on Sunday, officials said, ahead of peace talks in Paris this week.

Vasyl Maliuk, Ukraine's top spy chief, resigned Friday under pressure from Ukrainian President Volodymyr Zelensky.

Russia launched a sweeping attack on the Ukrainian capital of Kyiv on Jan. 5. The Kremlin’s latest salvo comprised nine missiles and 165 Shahed-type drones, 137 of which were intercepted, according to Ukraine’s Air Force. Still, impact sites were recorded across 10 locations, with debris falling in nine others.