North Korean leader Kim Jong Un and his daughter Ju Ae attended New Year's celebrations including fireworks and an ice dancing display, state media KCNA reported on Wednesday.
Senior North Korean officials joined them in watching the events, state media photos showed. There was no mention of any speech by Kim.
KCNA said on the previous day that Kim had pledged to solidify the country's comprehensive strategic partnership with Russia in a letter to President Vladimir Putin.
In the message, Kim sent New Year greetings to Putin and all Russians, including their troops and expressed his willingness to further step up bilateral ties, which he said the two leaders have elevated to a new height this year, through new projects, KCNA said.
Kim "wished that the New Year 2025 would be recorded as the first year of victory in the 21st century when the Russian army and people would defeat neo-Nazism and achieve a great victory," KCNA said.
Kim and Putin signed a mutual defense treaty at a summit in June, which calls for each side to come to the other's aid in case of an armed attack.
North Korea has since dispatched tens of thousands of troops to Russia to support its war against Ukraine, and Seoul and Washington said that more than a thousand of them have been killed or wounded.