This is reported by the partisan movement "ATEŠ".
It has been noted that an old submarine base, which previously operated as a museum, is once again being used for military purposes. The "ATEŠ" movement is actively investigating the defensive lines of the occupiers in search of vulnerabilities.
"This facility, known as Object 825GTS, is located in Balaklava and is an underground complex capable of sheltering submarines and providing their repair and maintenance", the report states.
Moreover, the occupiers have set up marine engineering barriers to protect against unmanned boats and sabotage groups.
We remind you that the occupiers are constructing defensive structures in the Kerch Strait.
Additionally, partisans have discovered a hidden equipment depot in the temporarily occupied Crimea.