A huge explosion rocked a Russian ammo depot. The Kremlin says it mishandled explosives.

Footage shared to social media showed smoke plums at what was identified as Russia's 51st GRAU Arsenal, hundreds of miles from the Ukrainian border.

Apr 22, 2025 - 21:14
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A huge explosion rocked a Russian ammo depot. The Kremlin says it mishandled explosives.
The aftermath of an explosion at an ammunition depot in Russia last year. Ukraine has targeted several sites in recent months.
The aftermath of a 2024 explosion at an ammunition depot in Russia.
  • A massive blast occurred at a Russian ammunition depot on Tuesday.
  • The Kremlin said the incident was caused by a fire from the mishandling of explosives.
  • Ukraine has attacked similar sites in the past, but this is said to be an accident.

A massive blast rocked a Russian ammunition depot Tuesday. The Kremlin blamed it on a fire from a lack of safety when working with explosives.

Video footage and images began to surface on social media on Tuesday, showing smoke plumes and fireballs at what was identified as Russia's 51st Main Missile and Artillery Directorate (GRAU) Arsenal, a facility located northeast of Moscow in the Vladimir Region, more than 300 miles from the Ukrainian border.

There were reports later of secondary explosions. Ukraine's strategic communications center said that the facility is one of the Russian defense ministry's largest munitions arsenals.

Russia's 51st GRAU is in the Kirzhach district of the Vladimir region. Russian state media said that authorities declared a state of emergency in this district.

Andriy Kovalenko, the head of Ukraine's Center for Countering Disinformation, wrote in a message on the Telegram messaging app that the arsenal stores around 100,000 tons of weaponry. He said this includes artillery shells and missiles. Business Insider could not immediately verify the reported details of the incident.