Reports: Ukrainian forces strike energy infrastructure in occupied Mariupol amid fires in Russia's Taganrog

What happened

The Kyiv Independent reports that Ukrainian forces targeted energy infrastructure in the occupied city of Mariupol late on September 13, causing power outages in parts of the city and hitting a building after Russian air defenses were activated, according to monitoring channels such as Exilenova Plus. Details remain unverified independently.

Outside Brief is treating this as a source-led account. Any disputed responsibility, casualty figure, battlefield claim or single-source assertion should be treated as unconfirmed/hearsay unless confirmed by another reliable source or a named official. Concurrently, fires have persisted for a second day at fuel storage facilities in Taganrog, a southern Russian city near the Ukrainian border, reportedly following Ukrainian drone and missile attacks. On September 12, Ukrainian Security Service (SBU) forces reportedly struck multiple targets in Taganrog, including a drone production facility, warehouses, an oil-products tank, a radar system, and a Pantsir-S2 air-defense system, as stated by President Volodymyr Zelensky. However, these claims rely on single-source official statements.

The strikes form part of a broader pattern of Ukrainian operations aimed at degrading Russian military and economic infrastructure both within occupied territories and deep into Russia. For instance, earlier drone strikes damaged facilities in Russia’s Samara Oblast, and Russian forces continue to launch drone attacks across Ukraine, as illustrated by reported strikes near the Poland border and western Ukraine’s Volyn and Rivne oblasts.

Known from the source

• Ukrainian forces struck energy infrastructure in Mariupol on September 13, causing partial power outages.
• A building in occupied Mariupol was hit during the attack, following the activation of Russian air defenses.
• Fires at fuel storage tanks near Taganrog in Russia continued to burn for a second day after reported Ukrainian attacks.
• President Volodymyr Zelensky reported Ukrainian Security Service strikes on multiple military and drone-related targets in Taganrog on September 12.
• Ukrainian long-range drones struck a plant in Russia’s Samara Oblast, causing a fire, according to Ukraine’s General Staff.

What remains unclear

Russian officials, including Kremlin spokesperson Dmitry Peskov, have acknowledged changes in Russian military tactics following Ukrainian targeting of economic and strategic assets, though verification of these statements is pending. At the same time, diplomatic reactions highlight the ongoing security concerns in Europe, with foreign officials framing the attacks as direct threats to NATO and EU neighbors.

What remains unclear: Confirm whether the central claim is corroborated; until then treat it as unconfirmed/hearsay. Verification of power outages and specific infrastructure damage in Mariupol after the reported strike. Confirmation from multiple independent sources on fires and damage at Taganrog military facilities. Corroboration of claims made by President Zelensky regarding exact targets hit in Taganrog.

Evidence note

This story contains report-led claims. The article keeps those claims attributed and treats them as unconfirmed/hearsay unless independently corroborated.

Original source: Kyiv Independent. Open the source.