Russia’s top security agency says it has arrested four Russians accused of making preparations to kill senior Defense Ministry officials on Ukraine's orders.

North Korean troops are suffering heavy losses in the fighting in Russia's Kursk region and facing logistical difficulties as a result of Ukrainian attacks, Ukraine’s military intelligence said Thursday.

Russian security officials said it arrested four Russians accused of planning to kill senior officials with the Defense Ministry.

DTEK, Ukraine’s largest private energy company, reported power outages across large areas of the country after Russia fired missiles against DTEK power stations in strikes on Christmas day. DTEK said

Russia launches a Christmas Day missile attack on Ukraine as the war enters its third year. NBC News’ Erin McLaughlin reports on the shifting battleground there and in Washington, D.C.

President Biden on Wednesday denounced Russia’s latest attack on Ukraine, declaring the wave of missiles and drones “outrageous.” “The purpose of this outrageous attack was to cut off the Ukrainian people’s access to heat and electricity during winter and to jeopardize the safety of its grid,

Zelensky warns of greater military cooperation between Moscow and Pyongyang, including sending more troops and military equipment

Iranian President Masoud Pezeshkian is set to visit Moscow on Jan. 17 and sign a cooperation agreement with Russian President Vladimir Putin, Russian state news agency RIA cited Iran's ambassador to Russia as saying on Thursday.

President Vladimir Putin said on Thursday there was no time left this year to sign a new Ukrainian gas transit deal, and laid the blame firmly on Ukraine for refusing to extend the agreement that brings gas to Slovakia,

North Korean troops are suffering heavy losses in the fighting in Russia’s Kursk region and facing logistical difficulties as a result of Ukrainian attacks.

Russia rebuffed incoming US President Donald Trump’s call for an immediate ceasefire in Ukraine, while saying it’s ready to hold negotiations on a long-lasting peace agreement to end almost three years of war.