Russia launched a major air attack early Thursday on Kyiv that included a rare strike on the city center, killing at least 18 people, wounding 48 and damaging European Union diplomatic offices, authorities said.

The bombardment of drones and missiles was the first major Russian attack on Kyiv in weeks as U.S.-led peace efforts to end the three-year war struggled to gain traction. Britain said the attack sabotaged peace efforts, while top EU diplomat Kaja Kallas summoned Russia’s EU envoy to Brussels over the strikes that damaged EU offices.

Ukraine on Thursday requested an emergency meeting of the U.N. Security Council to discuss the overnight bombardment, while two of Ukraine’s top envoys were set to meet Friday with the Trump administration regarding mediation.

The Kremlin said Russia

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