Russian authorities left residents in and around Moscow without air raid sirens or phone alerts during Ukraine's largest combined strike on Moscow Oblast, apparently to guard turnout at Russia's parliamentary elections, the Institute for the Study of War (ISW) said. The silence angered residents and even pro-war commentators as a major oil refinery burned.

For most of this war, Russia has handled strikes on its cities as a routine to be announced, warned about, and waited out. Withholding warnings during the heaviest raid yet, in the middle of a national vote, suggests authorities will trade residents' safety for the look of a calm election when a political milestone is on the line.

Sirens stayed off during the biggest raid

Ukraine hit strategic sites across the Moscow area overnight on 19-20 September, the last day of Russia's State Duma vote. Moscow Oblast officials did not switch on air alert sirens or send the SMS warnings they had used during far smaller attacks. They quietly restricted mobile service without major public notice. Ukraine struck oil and logistics targets, not polling stations, according to the experts, and authorities appeared to place high turnout above protecting civilians.

Moscow Oblast residents complained that no alert reached them, some posting on the Telegram channel of regional Governor Andrei Vorobyov before it closed comments. A prominent Kremlin-linked military blogger attacked the official response, saying it erodes public trust and that cutting mobile service does "not really help."

What the drones hit

Ukraine's General Staff reported striking the Gazpromneft-Moscow Oil Refinery in the city's Kapotnya district, one of Russia's largest plants, causing a large fire. Ukrainian manufacturer Fire Point said its FP-1 drones completely shut down the refinery, with all primary processing units damaged.

Governor Andrei Vorobyov claimed air defenses countered 249 drones across 17 municipal districts. The strike was part of Ukraine's widening campaign against the fuel sector funding Russia's war, with about a fifth of Russian refining capacity offline.