Following from the above post, an article from RBC-Ukraine stating:
"Sources told RBC-Ukraine that the attack on the warehouse was a special operation of Ukrainian defenders, involving the Security Service of Ukraine, Defense Intelligence of Ukraine, and the Special Operations Forces.
It is confirmed that the attack targeted the warehouse of the Missile and Artillery Department, where the Russians stored missiles for Iskander tactical systems, KN23 ballistic missiles, missiles for Tochka-U tactical missile systems, guided aerial bombs, S-300s, and artillery ammunition.
According to sources, more than a hundred attack drones were involved".
Russia claims that 54 drones were "destroyed". Possibly when they hit their targets and exploded.
Strike on warehouse in Russia's Tver region - Details | RBC-Ukraine