This is reported by the Russian Ministry of Defense.

“Over the past day, as a result of high-precision strikes by the Russian Aerospace Forces on the command post of the 123rd territorial defense brigade, the location of foreign mercenaries in the city of Nikolaev, as well as the ammunition depot of the 79th airborne assault brigade in the village of Shevchenko, Nikolaev region, more than 20 Ukrainian servicemen were killed and more than 80 foreign fighters,” the ministry said.

Earlier it was reported that Russian military aviation struck at the training base for foreign mercenaries in Ukraine near the city of Nikolaev.