U.S. President Donald Trump's special envoys Steve Witkoff and Jared Kushner met with Russian dictator Vladimir Putin in Moscow on Saturday, seeking to revive U.S.-mediated negotiations aimed at ending Russia's war against Ukraine.

Following the meeting at the Kremlin, which lasted about three hours, Putin's special representative Kirill Dmitriev described the visit by the U.S. negotiators as an "important peacemaking visit," Ukrinform reports, citing The New York Times.

Welcoming them, Putin said: "The situation we have to deal with today is certainly not simple." He also conveyed his "best wishes and words of gratitude" to Trump.

Kushner, for his part, greeted Putin by saying "happy holiday" in Russian, referring to Moscow's City Day, which was celebrated on Saturday.

Read also: Trump sends Witkoff and Kushner to Moscow, Kyiv with proposal to end war