President Volodymyr Zelensky on May 15 paid his respects to the victims of the previous day's Russian missile attack that destroyed part of an apartment building in Kyiv, killing 24 people, including three children.

The visit came an hour after first responders concluded search and rescue efforts at the site, 28 hours after a Russian missile struck the building in Kyiv's Darnytskyi district.

"The world must remember the price Ukraine pays every day to prevent Russian aggression from spreading to other nations," Zelensky wrote on social media.

A day of mourning was being observed in Kyiv on May 15.

The search and rescue operation at the site of Russia’s strike on a residential building in Kyiv has been completed. Our first responders from the State Emergency Service of Ukraine worked continuously for more than a day. The Russians practically demolished an entire section of… pic.twitter.com/PjbSSomhWu