Russian missile and drone assaults killed 14 people in Kyiv overnight, according to Ukrainian officials.
A 62-year-old US citizen who sustained shrapnel wounds is among the fatalities.
At least 44 people were injured in strikes that ripped through a residential structure and wrecked dozens of flats.
Emergency personnel were on the site to rescue individuals from beneath the rubble.
Images suggest that a fireman was among those injured, and injured residents were evacuated from their houses.
Ihor Klymenko, Ukraine’s interior minister, claimed 27 facilities in the capital had been targeted, including educational institutions and key infrastructure.
He said the strike, which occurred early Tuesday morning, was one of the largest against the city since Russia’s full-scale invasion began in February 2022.
Drones hovered over the city, and an air raid alert remained in effect for seven hours.
It comes while the G7 Summit in Canada is underway, and Ukraine’s leader is set to attend.
Volodymyr Zelenskyy was scheduled to meet with Donald Trump, but the president has stated that he is abruptly returning to Washington owing to Middle East concerns.
Ukraine’s foreign minister believes Moscow’s choice to strike Kyiv during the summit is a message of contempt to the United States.
Moscow has launched a record number of drones and missiles in recent weeks, claiming the operations are in response to a Ukrainian operation that attacked jets at airbases deep within Russian territory.
According to Kyiv Mayor Vitali Klitschko, debris from drones shot down by the nation’s air defences caused fires in two of the city’s districts.
