Russian air defenses intercepted and destroyed 158 Ukrainian drones overnight, including two over the city of Moscow and nine over the surrounding Moscow region, the defense ministry said Sunday.

Forty-six of the drones were over the Kursk region, where Ukraine has sent its forces in recent weeks in the largest incursion onto Russian soil since World War II. A further were 34 over the Bryansk region, 28 over the Voronezh region, and 14 over the Belgorod region — all of which border Ukraine.

Drones were also shot down deeper into Russia, including one each in the Tver region, northwest of Moscow, and the Ivanovo region, northeast of the Russian capital.

Ukrainian drone strikes have brought the fight far from the front line into the heart of Russia. Since the beginning of the year, Ukraine has stepped up aerial assaults on Russian soil, targeting refineries and oil terminals to slow down the Kremlin’s assault.

In Ukraine, eight drones were shot down out of 11 launched by Russia, according to the Ukrainian air force.

Five people were wounded in shelling in the country's northeastern Kharkiv region, local officials said.