Does a real video show a U.S. warship on fire after an Iranian attack? No, that's not true: An AI-generated content detection tool rated the video as "likely to be AI-generated." There are also several other signs that the video was likely made with AI or digitally altered, including unnatural-looking fire and smoke, unrealistic water movement, and slight warping or flickering on parts of the ship and the aircraft.
The claim appeared in a post and video (archived here) by the @daddybill1977 account on Threads on May 12, 2026. It read:
This is not Ai [sic].
So much damage has been done to the US Navy, and most of the military bases have been either destroyed or put out of commission permanently. Stop lying to us Pete!
This is what the post looked like on Threads at the time of writing:

(Image source: post by @daddybill1977 on Threads.)
The video is embedded below:
View on Threads
AI detection
The Hive Moderation AI-Generated Content Detection tool concluded the video was 84.4% "likely to be AI-generated":

(Image source: Hive Moderation.)
Additional AI indicators
The video shows several signs commonly associated with AI-generated or digitally altered content. The fire and smoke move too smoothly -- almost like animation -- and the water around the ship barely reacts to what should be an intense blaze. Parts of the ship and the aircraft on deck also appear to warp and flicker slightly, a common artifact in AI-generated video.
Lead Stories searched Google News (archived here) and Yahoo! News (archived here) and did not find any matching reports for the words: "U.S. warship on fire after Iran attack." Major news outlets would have widely reported such an attack if it had occurred. In early May 2026, U.S. Central Command (archived here) said Iran had targeted the USS Truxtun, the USS Rafael Peralta, and the USS Mason, but none of the vessels were hit.