A video showing a massive blast is going viral on social media to claim that it shows Iran conducting a nuclear test. (Archives of similar claims can be seen here and here.)What’s the truth?: This video is not real and generated using Artificial Intelligence.Old Video Shared as Recent Visuals of Huge Explosion Taking Place in IranHow did we find out the truth?: We conducted a reverse image search on some of the keyframes from the viral video and found the same video uploaded on a YouTube channel, LaugHasore.This was shared on 16 May 2025 and the title said, 鈥淢ilitary exercise bomb explosion event 鈥 AI video.鈥漈he channel’s disclaimer also stated,鈥淎ll videos on this channel are created using artificial intelligence for entertainment purposes only. Each video is a fictional simulation of a specific event. These AI-generated videos are often referred to as 鈥楢I鈥 or 鈥榝ake鈥 by viewers.鈥漌e also ran the viral video through an AI detection tool, Hive Moderation, and the results confirmed that the video was AI-generated.Conclusion: An AI-generated video of a blast is going viral online to claim that Iran is testing its nuclear weapons.Unrelated Clip of Burning House in Israel Falsely Linked to Iran-Israel Conflict(Not convinced of a post or information you came across online and want it verified? Send us the details on WhatsApp at 9540511818 , or e-mail it to us at webqoof@thequint.com and we’ll fact-check it for you. You can also read all our fact-checked stories here.)