(Bloomberg) -- US President Joe Biden was slated to meet in Warsaw with eastern European leaders who have supported Ukraine with weapons deliveries and by taking in millions of refugees fleeing Russia’s war.

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3. provide Ukraine with ammunition from their existing stockpiles and from orders they have already placed, according to a letter dated Feb. 21 and seen by Bloomberg.

   Russia’s War in Ukraine: Key Events and How It’s Unfolding

   The front line has not moved despite Russian troops using an entire range of weapons against the Ukrainian army, including gas grenades in the Bakhmut, Lyman and Avdiyivka areas, Ukrainian President Volodymyr Zelenskiy said.

   Tune in for the next in our series of special Twitter Space conversations about one year of war in Ukraine. Today’s chat at 8am ET/1pm London will focus on the impact on global energy supplies and markets, and on the environment and renewable energy policies. You can listen via this link. You can also listen back to our conversation yesterday on the war itself and military lessons learned.

   How Does Ukraine Continue to Beat Back Russia? (Podcast)

   (See RSAN on the Bloomberg Terminal for the Russian Sanctions Dashboard.)

   On the Ground

   Eleven explosions were heard Tuesday evening in the southern port city of Mariupol, occupied by Russian forces early in the invasion, the Unian news service reported, adding that two districts were hit, according to preliminary information. 

   German Tech Lobby Warns on Cyber Attacks (10:50 a.m.)

   Germany could experience a sharp increase in Russian cyber attacks should the Kremlin’s war on Ukraine escalate further, according to the head of the country’s technology lobby Bitkom.

   
   

   As well as digital attacks, the possibility of physical sabotage of cables or IT hardware must also be considered, Bitkom President Achim Berg was quoted as saying by the Handelsblatt newspaper. Interior Minister Nancy Faeser also warned of an increased threat from espionage, disinformation and cyberattacks instigated by Russia, the paper reported.

   Russian Missile Attack Targets Industrial Facility in Kharkiv (10:10 a.m.)

   Russian forces fired four missiles at an industrial facility in Kharkiv, Zelenskiy’s Chief of Staff Andriy Yermak said on Telegram. 

   At least two people were lightly wounded after the attack, regional governor Oleh Synehubov said on Telegram. Kharkiv is Ukraine’s second-largest city situated 25 kilometers (15 miles) from the Russian border.

   China Says Willing to Maintain Good Relations With Russia (10:05 a.m.)

   China’s top diplomat Wang Yi said in opening remarks as he sat down with Russian Foreign Minister Sergei Lavrov on Wednesday that regardless of changes in the international arena, China is willing to maintain its good relations with Russia.