The FSB stated that the attack involved 35 attack drones resistant to electronic warfare and equipped with foreign explosives.

The drones were delivered via Slovakia and Poland, smuggled in, and disguised as Spanish ceramic tiles.

After the drones were launched against the facilities, a special FSB unit destroyed all the devices, thus ensuring the safety of the building and its occupants.

The FSB has opened a criminal case on charges of committing a terrorist act.

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