A large Russian drone and missile barrage on Ukraine's western city of Ternopil killed at least 25 people, including three children, authorities said Wednesday, as President Volodymyr Zelenskyy went to Turkey in search of diplomatic support for his fight against Russia’s invasion.

The nighttime attack hit two nine-story apartment blocks in Ternopil, located around 200 kilometers (120 miles) from the Polish border, according to Interior Minister Ihor Klymenko.

At least 73 people, including 15 children, were injured, emergency services said.

At least 19 among those killed were burned alive, including three children aged 5, 7 and 16, Klymenko said.

Two dozen people are still unaccounted for, he said on national television, and rescuers expect to work at least two more days to complete the search of rubble.

"This is horrifying seeing all this," a local resident who gave her name as Halyna told the Associated Press.

"Children are being taken away by ambulance. It's horrible."

Russia fired 476 strike and decoy drones, as well as 48 missiles of various types, at Ukrainian targets overnight, Ukraine’s air force said.

The bombardment included 47 cruise missiles, with air defenses intercepting all but six of them, the air force said.

Western-supplied F-16 and Mirage-2000 jets intercepted at least 10 cruise missiles, it said.

“Every brazen attack against ordinary life indicates that the pressure on Russia (to stop the war) is insufficient,” Zelenskyy wrote on the messaging app Telegram.