Russian drone hits SBU headquarters in Kyiv; Zelenskyy vows response

A Russian drone struck the headquarters of Ukraine's SBU security service in Kyiv, prompting President Volodymyr Zelenskyy to vow a "fitting, tangible" response. The attack targeted the office of the intelligence chief. Zelenskyy said rescue workers were treating the wounded and ordered a response that is "mirror-like where possible." Foreign Minister Andriy Sybiha called it a "serious escalation" requiring "decisive answers," noting it came amid new peace efforts, including planned US envoy visits to Moscow and Kyiv. Kyiv Mayor Vitali Klitschko reported five injured and a destroyed bakery nearby. The capital has faced ten days of drone attacks, though hits on government buildings are rare in the four-and-a-half-year war. The SBU is key to Ukraine's defense, conducting strikes deep inside Russia.