Ukraine and Russia: What you need to know right now

More than 1,000 Ukrainian marines have surrendered in the port of Mariupol, Russia's defence ministry said on Wednesday, signalling that it had moved closer to capturing the devastated city, its main strategic target in Ukraine's east.

More than 1,000 Ukrainian marines have surrendered in the port of Mariupol, Russia's defence ministry said on Wednesday, signalling that it had moved closer to capturing the devastated city, its main strategic target in Ukraine's east. The Ukrainian defence ministry spokesman said he had no information on such a surrender. [ FIGHTING

* Russia is beefing up forces for a new assault on Ukraine's eastern Donbas region, setting the stage for a protracted battle certain to inflict heavy losses on both sides as the Russians try to encircle Ukrainian fighters. * The mayor of Mariupol, Vadym Boichenko, said in televised remarks that more than 100,000 people remained in the city awaiting evacuation. He said earlier that some 21,000 civilian residents had been killed during the siege.

* At least seven people were killed and 22 wounded by shelling in the northeastern Ukrainian region of Kharkiv over the past 24 hours, Governor Oleh Synehubov said. * Russia will view U.S. and NATO vehicles transporting weapons on Ukrainian territory as legitimate military targets, Deputy Foreign Minister Sergei Ryabkov told the TASS news agency in an interview.

* U.N. Secretary-General Antonio Guterres, recently back from a visit to Ukraine, said a humanitarian ceasefire in Ukraine does not seem possible at the moment. HUMAN IMPACT

* Residents in Lubianka, a village northwest of Kyiv, are trying to rebuild their lives all while Ukrainian soldiers remove deadly mines from a nearby forest where Russian troops had set up camp. DIPLOMACY

* U.S. President Joe Biden said for the first time that Russia's invasion amounts to genocide. The Kremlin said it categorically disagreed with Biden's description and that it was unacceptable. * The presidents of Poland, Lithuania, Latvia and Estonia arrived in Kyiv on Wednesday to meet Ukrainian President Volodymyr Zelenskiy, the Polish leader's office said.

* A mission of experts set up by Organization for Security and Cooperation and Europe (OSCE) nations has found evidence of war crimes and crimes against humanity by Russia in Ukraine, an initial report by the mission said. Russia has repeatedly denied targeting civilians in the conflict. * Russia said that claims by the United States and Ukraine that its forces could use chemical weapons were disinformation because Moscow destroyed its last chemical stockpiles in 2017.

ECONOMY AND BUSINESS * Russia can easily redirect exports of its vast energy resources away from the West to countries that really need them while increasing domestic consumption of oil, gas and coal, President Vladimir Putin said.

* Countries seeking commercial advantage by failing to condemn Russia's "heinous war" against Ukraine are being short-sighted and will face consequences if they undermine Western sanctions, U.S. Treasury Secretary Janet Yellen said. * Britain said it was imposing new sanctions on 206 individuals in response to Russia's invasion, including 178 who it said were involved in propping up Russian-backed breakaway regions of Ukraine.

* Reckitt Benckiser Group said it had begun a process aimed at transferring ownership of its Russian business, becoming the first major personal goods maker to do so following the invasion. QUOTES

* "The United States is ready to fight with Russia until the last Ukrainian - that is the way it is." - Putin * The Russian army is using all types of artillery, all types of missile, air bombs in particular phosphorous bombs against residential districts and civilian infrastructure...This is clear terror against the civilian population." - Zelenskiy (Compiled by Michael Perry; Editing by Simon Cameron-Moore and Alex Richardson)