Overnight missile strike in Kyiv kills at least one person.

"The enemy at the front doesn't have a problem, the enemy has a catastrophe," Serhiy "Flash" Bezkrestnov said.

"We are working in the same formats as yesterday: trilateral consultations, group work, and further synchronization of positions," Secretary of the National Security and Defense Council Rustem Umerov said.

Following the first phase, the Pentagon says it will order $150 million in prototypes from successful competitors.

Delegations from Ukraine, Russia, and the U.S. reached an agreement to swap "314 prisoners" between Kyiv and Moscow on the second day of peace talks in Abu Dhabi on Feb. 5, U.S. Special Envoy Steve Witkoff said.

The General Staff attributed the strikes to "using long-range strike weapons of Ukrainian production, particularly the FP-5 'Flamingo.'"

Russia's flagship liquified natural gas (LNG) export terminal, Yamal LNG, exported a total of 1,690,517 metric tons of LNG to European markets last month, accounting for an 8% increase compared to January 2025, German environmental NGO Urgewald found in a report published Feb. 4.

Polish Prime Minister Donald Tusk is expected to later hold talks with President Volodymyr Zelensky.

Energy investments made up over 1.2 billion euros of the bank's financing to Ukraine last year, providing support for gas imports, decentralized generation, emergency repairs, as well as long-term reconstruction of the energy sector, the bank said.

After a short pause in attacks on Kyiv at the request of U.S. President Donald Trump, Russia has resumed attacks on the capital in recent days as residents continue to contend with freezing temperatures.

"The Russians are conducting a targeted attack on Zaporizhzhia and the region all day long. As a result of the attacks, over 53,000 subscribers...are without electricity," Governor Ivan Fedorov reported.

It would also cost Russia "800,000 more corpses" to take eastern Ukraine by force, President Volodymyr Zelensky told France TV in a Feb. 4 interview.

The New START Treaty, signed by Russia and the U.S. in 2010 and set to expire on Feb. 5, 2026, places mutual limits on strategic nuclear warheads and launchers.