According to officials, one person died and 26 people were hurt after a night of heavy Russian strikes on Kyiv.
Ukraine’s air force said Russia sent 539 drones and missiles. This is the biggest single attack since the war began.
Air raid sirens sounded for more than eight hours.
People stayed in shelters until about 4:30 a.m. local time.
Hours before the strikes, United States President Donald Trump spoke with Russian President Vladimir Putin by phone.
Trump said he felt disappointed because Putin was not ready to stop the war.
The Kremlin said the war would go on until it solved what it called the root causes of the conflict.