The Ukrainian capital Kyiv observed an official day of mourning on Friday, a day after a Russian drone and missile attack on the city killed 31 people, including five children, and injured more than 150, officials said.

The youngest victim in Thursday's strikes was 2 years old, and 16 of the injured were children, Ukrainian President Volodymyr Zelenskyy said.

It was the highest number of children killed and injured in a single attack on Kyiv since aerial attacks on the city began in October 2022, according to official casualty figures, reported by the AP.

Russia to deploy hypersonic missiles in Belarus President Vladimir Putin said Friday that Russia has started production of its newest hypersonic missiles and reaffirmed its plans to deploy them to ally Belarus later this year.