Ukraine and the US are to hold crunch peace talks in Saudi Arabia from tomorrow following a tense few weeks in which relations between Kyiv and Washington looked more fraught than ever, US officials have said they are planning on using the meeting with their Ukrainian counterparts to determine whether Kyiv is willing to make material concessions

The secretary of state, heading to talks with Ukrainian officials in Saudi Arabia, said future talks with Moscow will be needed to determine what Russia is willing to give up to end the war.

The front line inside Ukraine has become more static, Ukrainian soldiers say, even as Russia regains ground in its own Kursk region.

Russia launched air strikes overnight on Kyiv, with air defence systems engaged in repelling the attack, Ukrainian authorities said late on Monday. "Air defence forces are working to eliminate the threat in the skies over Kyiv,

Top U.S. negotiators will meet with Ukrainian officials on Tuesday to try and kickstart ceasefire talks. Meanwhile, Russia is intensifying its air strikes on Ukraine. CBS News' Holly Williams has the latest.

Ukraine’s presence in Russia’s Kursk region has deteriorated sharply, with the advance threatening Kyiv’s sole territorial bargaining counter at a crucial time in the war.

Ukraine’s military and Russian war bloggers say Russian special forces walked inside of a gas pipeline to strike Ukrainian units from the rear in the Kursk region

A Russian offensive supported by North Korean troops in the past few days has made a serious advance in Russia's Kursk region northeast of Ukraine, breaking through Ukrainian positions and forcing them to withdraw to new defense lines,