(Reuters) - The United States will provide an additional $1 billion in security assistance to Ukraine for its efforts in the eastern Donbas, the recent focus of Russia's invasion, President Biden told his Ukrainian counterpart during a call on Wednesday.

       The supports includes "additional artillery and coastal defense weapons, as well as ammunition for the artillery and advanced rocket systems," Biden said in a statement from the White House after the call with Volodymyr Zelenskiy.

       (Reporting by Chris Gallagher in Washington; writing by Costas Pitas; editing by Susan Heavey)