Ukraine has carried out a series of deadly air strikes on targets in southwest Russia over the past 24 hours, according to Russian officials.
Russia’s emergency ministry says 14 people, including two children, were killed and more than 100 injured in the city of Belgorod.
Earlier, Russia’s defense ministry said it had destroyed dozens of missiles and drones fired from Ukraine.
The attacks followed Russian strikes on Ukraine, which killed 39 people.
Those strikes were described by Kyiv as Russia’s biggest missile bombardment of the war so far against Ukraine.
Ukrainian media, citing intelligence sources, is reporting that more than 70 drones were used in a series of attacks on Russia, and only military targets were attacked.
They added that a group of drones successfully hit an electronic factory in the Bryansk region used to make Russian military equipment like long-range missiles and anti-aircraft systems.
Moscow has repeatedly accused Ukraine of being behind drone strikes in recent months, though Ukraine has not claimed responsibility for these.