A diplomatic scramble unfolded Saturday after President Donald Trump announced he would meet his Russian counterpart, Vladimir Putin, next week in Alaska, as European leaders rushed to understand the terms of the meeting and ensure Ukraine was not being left out of discussions about its future.

Trump is set to meet with Russian President Vladimir Putin in Alaska on Friday to discuss a potential ceasefire in Ukraine.

Earlier Thursday, when pushing back on Kremlin claims that a Trump-Putin summit had been set, a White House official had said Putin would also have to meet with Zelenskyy for the meeting to take place -- something the Kremlin has not been willing to commit to so far.