Fact Check: Video Does NOT Show Explosion In Moscow -- Old Crimea Footage

Does a video shared online show a huge explosion in Moscow, Russia in 2025? No, that's not true: The video shows an explosion in Crimea in 2023 related to an attack on a ship. It does not show an attack on the Russian capital in 2025.

One example of the video being shared with a misleading caption was an X post (archived here) published on June 2, 2025 which read:

🚨 BREAKING: MASSIVE EXPLOSIONS ROCK MOSCOW -- CAPITAL UNDER ATTACK? 🚨

💥 Multiple very large explosions have just been witnessed across Moscow.

⚠️ Plumes of smoke are rising. Sirens blaring. Panic spreading.
🗣️ Eyewitnesses report: "It felt like an earthquake -- buildings shook, alarms went off, people ran."

🔴 Russian state media is silent -- fueling speculation of a major strike or sabotage.

🔥 THE WAR MAY HAVE JUST CROSSED A NEW RED LINE. 🔥

📢 WHAT THIS MEANS:

⚠️ Is this Ukraine's boldest move yet -- or a false flag inside Russia?
⚠️ Putin may now claim justification for full retaliation.
⚠️ Moscow hasn't seen this kind of chaos since WWII -- until now.

💥 Expect a swift and merciless response. 💥 This could be the moment everything changes -- fast.

🚨 WHEN THE CAPITAL BURNS, THE WORLD HOLDS ITS BREATH. 🚨

However the video was already online in 2023 on the channel of ABC News Australia (archived here), under a headline that read: "Russia says naval ship in Crimea was damaged in air strike by Ukrainian forces". The video was described as:

Ukraine says it has destroyed one of Russia's biggest amphibious warships in a strike being viewed as a major setback for the Russian Navy.
The landing ship was hit while it was in a Crimean port in a massive explosion that lit up the night sky.

This is the video in question: