KYIV, May 23 (AFP) - President Volodymyr Zelensky on Tuesday visited Ukrainian troops on the frontline in the eastern region of Donetsk, where Russian forces have concentrated their efforts to capture territory.

"On his return from a foreign visit, President Volodymyr Zelensky visited the frontline positions of the Ukrainian armed forces in the Vugledar-Maryinka defense line in Donetsk region," the presidency said in a statement.