Ukrainian President Volodymyr Zelenskyy says that he will be waiting for Russian President Vladimir Putin in the Turkish capital this week to conduct face-to-face talks about the more than three-year war.

The EU is preparing new sanctions on Russia despite a potential meeting between Vladimir Putin and Volodymyr Zelenskyy on Thursday, three sources told CNBC.

Russia resumed mass drone attacks in Ukraine early on Sunday, after its self-declared three-day pause expired.