The first draft of Ukraine’s security guarantees for deterring Russia from re-invading the country after a peace agreement is reached could come as soon as “early next week,” a senior Kyiv official told NBC News on Friday.

Ukrainian Deputy Minister of Foreign Affairs Sergiy Kyslytsya said US and European leaders have been hammering out security guarantee details since Monday’s meeting with President Trump at the White House.

“If we speak about security guarantees, it’s such an important issue and so complex that we do really need at least one week to deliver, to prepare a solid draft over a package of security guarantees to Ukraine,” he told Kristen Welker on “Meet the Press.”

“Ever since Monday night, the NSA and chief of military staff have been working very hard, practically every day, to draft that … agreement. So ideally, we may have the first draft sometime early next week, and then we have to decide.”

The US commitment to helping Europe provide “NATO-like” security guarantees for Ukraine was celebrated this week as a major win for Trump, as the alliance’s Secretary General Mark Rutte lauded the US leader for brokering a “big step” toward peace.

That comment came during a meeting between Trump, Ukrainian President Volodymyr Zelensky and top European leaders at the White House on Monday, where they discussed security guarantees and potential bilateral talks between Zelensky and Russia’s president Vladimir Putin.

While Russian Foreign Minister Sergey Lavrov on Thursday said there was no meeting scheduled between Zelensky and Putin, Kyslytsya said that he believed the peace process was still progressing, albeit slower than Ukraine — and President Trump — would like.

“It’s moving forward gradually — unfortunately not as fast as we would love it to move,” he said. “But I think that this Monday and the meeting at the White House was a super highlight of the latest months, and I think that it was an important achievement where President Trump has played a crucial role.”

Security guarantees would come as part of any peace plan between Russia and Ukraine, as the latter needs assurances from international partners that they will help deter Russia from launching a new war on its neighboring country if and when the current conflict ends.

That could look like European troops on the ground in Ukraine to keep the peace, or a pledge — as previously mentioned by Trump’s Special Envoy Steve Witkoff — that NATO partners including the US would come to Kyiv’s defense should Moscow break terms of a potential peace agreement.

Trump on Tuesday said he was open to sending American airpower to support Ukraine as the US’ contribution to the effort.