KYIV, Ukraine (AP) — National security advisers from Europe and other allies visited Kyiv on Saturday to discuss security guarantees and economic support as a U.S.-led diplomatic push to end the nearly 4-year-old war in Ukraine intensifies.

President Volodymyr Zelenskyy, preparing to travel to Paris for a meeting with partners, said work on the peace proposals could now accelerate as Ukraine has shared all documents under discussion with the 18 national security advisers, including those on security guarantees.

"We expect that this further work will now take place in the capitals of European countries as well as Canada, Japan and other representatives of the Coalition of the Willing," he said, referring to the approximately 30 countries who support Kyiv's effort to end the war with Russia on acceptable terms.

"We are not allocating a great deal of time for this process," Zelenskyy added.

He said representatives from Ukraine's General Staff and military sector would meet on Monday in Paris, followed by a meeting Tuesday of European leaders, where he said he hoped documents on security guarantees would be finalized. He said there also would be meetings with U.S. representatives in Paris.

In a briefing earlier in the day, Ukrainian negotiator Oleksandr Bevz said Kyiv is coordinating security guarantee plans with European partners that would include a multilateral framework agreement involving Ukrainian forces as the first line of defense, European-led troops deployed in Ukraine and U.S. "backstop" support.

Ukraine's deputy prime minister, Taras Kachka, said international partners have reached consensus on an economic support package of about $800 billion for Ukraine over the next decade.

The package, based on calculations by the World Bank, the International Monetary Fund and the European Union, would cover damage compensation, reconstruction, economic stability and a $200 billion growth "booster" and is tied to Ukraine's EU accession reforms.

Specific funding sources have not been identified, economy minister Oleksii Sobolev said, though roughly $500 billion is expected from public grants and concessional loans, with details to be worked out over the next two weeks.

Also on Saturday, Zelenskyy announced further changes to the government, saying he had proposed Denys Shmyhal to become energy minister and first deputy prime minister.

Shmyhal, who served most recently as defense minister and formerly as Ukraine's longest-serving prime minister, is well respected. His proposed replacement in defense is Mykhailo Fedorov, who is widely credited with leading the introduction of drone technology into the army in his role as digital transformation minister.

Zelenskyy on Friday appointed the head of Ukraine's military intelligence as his new chief of staff. The president framed the appointment of Gen. Kyrylo Budanov as part of an effort to sharpen the focus on security, defense development and diplomacy.

Meanwhile, the death toll from a Russian missile attack on the city of Kharkiv on Friday increased to two, including a 3-year-old boy, Kharkiv regional head Oleh Syniehubov wrote on Telegram.

An overnight Russian drone attack on the Mykolaiv region targeted critical infrastructure and left some communities without electricity, according to regional head Vitalii Kim. He said engineers spent the night working to restore power and there were no casualties reported.