Note on the "Marianivka" substation: No direct evidence of a "Marianivka" substation strike was found in the search results. The nearest match is the Nekrasivka substation hit on June 29. The name "Marianivka" may be a conflation or a different target not captured in available reporting. One OSINT group, Exilenova Plus, did report on June 29 that drone strikes hit a "major electrical substation in the village of Marianivka," citing NASA FIRMS data, but the preponderance of reporting from outlets like Ukrainska Pravda, RBC Ukraine, and Krymskyi Veter identifies the substation near Nekrasivka as the primary energy infrastructure hit that night .
By June 21, Russian-installed authorities had already completely suspended fuel sales at all gas stations in Crimea, halting cash, card, and coupon transactions . Rolling power outages were imposed starting June 21, with blackouts reported in Sevastopol, Alushta, Krasnoperekopsk, Armyansk, and Feodosia . On June 26, Russian-installed Governor Sergei Aksyonov declared a regional state of emergency in Crimea, citing fuel shortages, power outages, and disrupted logistics caused by weeks of Ukrainian strikes . The strikes on Saky TPP and the Nekrasivka substation on June 28–29 worsened the blackouts already in effect, with reports of widespread outages across Crimea, Kherson, and Donetsk on the morning of June 29 .
The search results did not produce any specific article or official statement from Estonia directly addressing the June 28–29 strikes or the risk of stray drones entering NATO airspace. The broader context: NBC News reported on June 23 that Ukraine's sustained drone campaign aims to create a "psych breaking point for Moscow," and that senior Western officials have publicly acknowledged some Ukrainian drones may cross into NATO airspace but consider this an acceptable risk . Estonia has been among the most vocal NATO allies supporting Ukraine's unrestricted deep-strike campaign, and no source in the provided material shows Tallinn introducing a caveat to that support. However, no direct source citing Estonia by name for the June 28–29 strikes specifically was found in the available reporting.