Dhaka, March 31 -- US President Donald Trump shared a video showing massive explosions in Iran, reportedly in the city of Isfahan early Tuesday. The footage shows multiple blasts followed by huge fires illuminating the night sky in orange.

Trump did not give further context, but media reports suggest the clip shows a joint US-Israeli strike on a major ammunition depot in Isfahan, home to 2.3 million people and the Badr military airbase. The authenticity of the video has not been independently verified.

A US official, cited by The Wall Street Journal, said US forces targeted the depot with 2,000-pound (about 907 kg) bunker-buster bombs. The strike reportedly caused a series of powerful secondary explosions, sending towering fireballs and...