Russia targeted Ukrainian cities with more than 150 missiles and drones Friday morning, in what Ukrainian officials said was one of the largest air assaults of the war. At least 30 people were killed, and more than 160 were wounded, according to the Ukrainian government, and critical infrastructure was damaged.

"This is the biggest attack since the counting began,” Yurii Ihnat, a Ukrainian air force spokesperson, said in a brief telephone interview, adding that the military did not track air assaults in the early days of Russia’s full-scale invasion, which began in February 2022.

For several hours Friday, missiles, drones and debris slammed into factories, hospitals and schools in cities across Ukraine, from Lviv in the west to Kharkiv in the east, straining the country’s air defenses and sending people scrambling for shelter.