A United States delegation led by real estate tycoon-turned-diplomat Steve Witkoff has begun a high-stakes meeting with Kremlin negotiators in Riyadh, Saudi Arabia, where the Trump administration is pushing for a ceasefire in separate talks with Russia and Ukraine.

U.S. officials are meeting separately with Ukrainian and Russian officials in hopes of hammering out a partial ceasefire in the 3-year war in Ukraine.

As the US-Russia talks begin in Riyadh, let's turn to some news from Ukraine, where the country's state-owned railway company says its online systems have been hit by a large-scale cyber-attack. Ukrzaliznytsia says it first reported disruption to its systems on Sunday, calling it an IT failure.

Moscow sees economic and geopolitical benefits in humoring President Trump’s push for a cease-fire in Ukraine. But the Kremlin’s war aims haven’t shifted.

U.S. President Donald Trump said on Saturday that efforts to stop further escalation of the Russia-Ukraine war are "somewhat under control." "Rational discussions" and having good relationships with presidents Vladimir Putin of Russia and Volodymyr Zelenskiy of Ukraine are key to negotiating an end to the war,

The U.S. is hoping for a broader cease-fire between Moscow and Kyiv covering the Black Sea in negotiations starting in Saudi Arabia.