KYIV/PRAGUE - Ukraine's existing security agreements with foreign partners envisage providing more than $23 billion in aid to Kiev, Ukrainian President Volodymyr Zelensky said on Thursday.

"New security agreements for Ukraine provide more strength and opportunities for protecting our people," Zelensky said in a post on Telegram.

The security accords stipulate giving Ukraine military and financial aid, he said.

Also on Thursday, foreign ministers of the North Atlantic Treaty Organization member states gathered in the Czech capital for a two-day informal meeting to discuss support for Ukraine 

To date, Ukraine has signed security agreements enshrining long-term support with 12 countries, and three of them -- with Spain, Belgium and Portugal, were inked this week. 

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Also on Thursday, foreign ministers of the North Atlantic Treaty Organization (NATO) member states gathered in the Czech capital for a two-day informal meeting to discuss support for Ukraine and preparations for the July NATO summit in Washington DC, the United States.

Speaking at a joint press conference with Czech Prime Minister Petr Fiala, NATO Secretary General Jens Stoltenberg said he expects leaders in Washington to make important decisions in three areas: strengthening NATO's defenses, deepening the alliance's partnerships, and increasing support for Ukraine.

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Fiala said that the Czech Republic had fulfilled its commitment to spend 2 percent of its gross domestic product on defense this year and will continue to do so in the coming years. He also said his country will continue to supply Ukraine with ammunition into next year.

On Thursday afternoon, several dozen anti-war demonstrators gathered in Prague's Hradcany square to protest the Czech Republic's involvement in the Ukraine conflict. Protesters carried drums and banners with slogans such as "Stop guns", "Let's get out of NATO" or "Stop NATO", the Czech News Agency reported.