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

The death toll from Russia’s heavy bombardment of Ukraine’s capital this week has risen to 31 people, marking the deadliest single attack on Kyiv in a year, Ukrainian officials said on Friday.

An overnight Russian drone and missile attack on Ukraine’s capital Kyiv has killed at least 18 people, including a six-year-old boy, as well as wounding 159 others, according to Ukrainian officials, prompting United States President Donald Trump to slam Moscow’s actions as “disgusting.”