A Russian drone struck the headquarters of Ukraine's SBU security service in central Kyiv on Friday, marking one of the most prominent targets hit during the ongoing war.

The attack injured at least 12 people and sent heavy black smoke rising over the historic city center, according to Kyiv's mayor. Ukrainian President Volodymyr Zelenskiy said the drone targeted the office of the SBU chief directly and ordered an appropriate response.

This strike came as Russia extended its air campaign against the Ukrainian capital into a 10th day. Moscow has shifted tactics by deploying more jet-powered drones capable of operating effectively in daylight hours, breaking the previous pattern of mostly nighttime assaults.

The change has forced residents into repeated sheltering during commutes, school hours, and daily activities. Air raid sirens have become constant, disrupting public transport and normal routines across the city of several million.

Prior strikes in the recent wave killed at least 12 people in Kyiv and surrounding areas early this week, with many victims including railway workers hit at a depot. Additional casualties occurred in nearby towns like Boryspil.

Ukrainian officials reported that Russia used waves of drones and missiles, including ballistic types, in sustained barrages. Air defenses intercepted many incoming threats, but some reached targets including residential buildings and infrastructure.

Zelenskiy described the attacks as aimed at causing maximum disruption to civilian life and vowed retaliation where possible. The escalation precedes planned visits by U.S. negotiators to the region.

Government buildings in Kyiv have rarely suffered direct damage in prior years of the conflict, making Friday's strike a notable development in Russia's approach.