Ukrainian president Volodymyr Zelensky has called for stronger international sanctions on Russia after a deadly attack on Kyiv killed at least 31 people.
Zelensky said five children - the youngest aged two - were among the dead and 159 people had been wounded in the assault on Thursday.
"No matter how much the Kremlin denies their effectiveness, sanctions do work - and they must be strengthened," he said.
Kyiv observed a day of mourning after the attack on the capital collapsed an apartment block and damaged a hospital, school, nursery and university.
Russia launched more than 300 drones and eight cruise missiles in the overnight assault, Ukraine's air force said. The attack was one of the deadliest Kyiv has experienced since Russia launched its large-scale invasion in February 2022.
