By Victoria Butenko, Katharina Krebs, Nina Subkhanberdina, Ivana Kottasová, Anna Chernova, CNN (CNN) — Russian leader Vladimir Putin rebuffed Ukrainian President Volodymyr Zelensky’s call for a face-to-face meeting, saying there was “no point.” Zelensky urged Putin to end the countries’ four-year war in an open letter posted Thursday, as the Russian leader was preparing to address the St. Petersburg International Economic Forum.