The Russian military claims to have destroyed two ammunition depots in the Eastern Ukrainian region of Donetsk with ground-to-ground missiles.
The Ukrainian army had stored ammunition for its rocket artillery in the village of Kamyanka, a Defence Ministry spokesperson said in Moscow.
He said a total of 64 Ukrainian military objects were destroyed within 24 hours.
Spokesperson Igor Konashenkov said Ukrainian Special Forces in the Mykolaiv region had been targeted.
The information could not be independently verified.
He said Ukraine had also lost three S-300 and Buk anti-aircraft systems.
According to him, Russian missiles fired from aircraft hit fuel depots near Starokostyantyniv and Khmelnytskyi in Western Ukraine.
This coincides with Ukrainian reports of missile attacks in the region.