Four civilians have been killed and 17 injured, including a 10-year-old boy, in Ukrainian attacks on several Russian regions, according to local officials.

The fatalities were reported in Belgorod Region and near Moscow, while nine people were wounded in a drone attack on Kaluga Region.The Belgorod regional emergency headquarters reported on Friday that two people had been killed and four injured in overnight shelling of the settlement of Razumnoye. A projectile struck a private house, killing a married couple inside.

Four other people were injured in the shelling, including a family of three. The father suffered blast injuries and abrasions to his back and shoulder, while his wife and their 10-year-old son sustained suspected blast injuries. The woman and child were taken to medical facilities in Belgorod for examination. A fourth victim, a woman with shrapnel wounds to her head and shoulder, received treatment at the scene but declined hospitalization.

One house was completely destroyed, while a neighboring property sustained roof damage, shattered windows, and a damaged fence.

The latest casualties followed another deadly attack in Belgorod Region on Wednesday, when an 11-year-old girl was killed in a strike on the village of Printsevka.

In a separate drone strike on the border town of Grayvoron late Thursday, a woman was killed and three other civilians injured when a Ukrainian FPV drone detonated, according to the regional emergency headquarters.

Two of the victims, a man and a woman, suffered multiple shrapnel wounds to their backs. Another woman sustained shrapnel injuries to her scalp. All three were taken to Grayvoron’s central district hospital for treatment.

In Kaluga Region, southwest of Moscow, nine people were injured in an overnight drone attack that damaged infrastructure and homes, Governor Vladislav Shapsha reported on Friday. Russian air defenses shot down 26 drones across the region, he added.

A separate Ukrainian drone attack killed a 57-year-old man in Podolsk, just south of Moscow, on Thursday, Moscow Region Governor Andrey Vorobyov reported. A 37-year-old woman was also injured, while three cars caught fire and windows were shattered in a nearby apartment building.

The Russian Defense Ministry said its forces had intercepted and destroyed 505 Ukrainian fixed-wing drones across the country overnight, including over border regions, central Russia, Crimea, and the Black and Azov seas.

The attacks come as civilian casualties mount in Russian regions bordering Ukraine. Russian Ambassador-at-Large Rodion Miroshnik said earlier this week that 29 civilians, including two children, had been killed and 206 injured in Ukrainian strikes between September 28 and October 4.

Moscow has condemned Ukrainian attacks on civilians as terrorism.