Dec. 27 (UPI) -- Russian attacks on Kyiv killed at least one and injured 27 early Saturday morning as Ukrainian President Volodymyr Zelensky prepares to meet with President Donald Trump on Sunday.

The Russian aerial assault started at 1:30 a.m. local time in Kyiv with missiles and attack drones dispatched in waves, causing Kyiv Mayor Vitali Klitschko to warn residents to stay in air raid shelters, The New York Times reported.

An estimated 40 missiles and 500 drones knocked out power in much of the city during the aerial assault.

Zelensky said the attack is the latest example of why Ukraine needs its international partners to help guarantee the nation's security before agreeing to end the war that started when Russia invaded on Feb. 24, 2022.

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