By Erin Banco, Gram Slattery and Humeyra Pamuk WASHINGTON/RIYADH/ANTALYA, Turkey (Reuters) - U.S. President Donald Trump's senior envoys Steve Witkoff and Keith Kellogg will travel to Istanbul for potential talks on Thursday on how to end the war in Ukraine,

"US President Donald Trump's Envoys, Steve Witkoff and Keith Kellogg, will travel to Istanbul on Thursday for possible talks on how to end russia's war in Ukraine. A senior US official said Washington does not expect an announcement on Moscow's plans until early Thursday morning," the report said.

Ukrainian officials say Russia launched more than 100 drones, rejecting calls for a ceasefire as Zelenskyy says he'll "be waiting for Putin" to join him for direct talks in Turkey.

Ukrainian President Volodymyr Zelenskyy has challenged Russia’s President Vladimir Putin to meet him personally in Turkey on Thursday

U.S. President Donald Trump's senior envoys Steve Witkoff and Keith Kellogg will travel to Istanbul for potential talks on Thursday on how to end Russia's war in Ukraine, three sources familiar with the plans said on Tuesday.

Ukrainian President Volodymyr Zelensky says he will be present in Turkey for direct negotiations with Russian President Vladimir Putin, telling CNN’s Nick Paton Walsh he expects new sanctions to be imposed on Russia if a 30-day unconditional ceasefire isn’t agreed upon.