Diverging Opinions on Cause of Sasovo Explosion

This document is an intelligence report regarding a powerful explosion that occurred near the city of Sasovo in the Ryazan Oblast of the USSR at midnight on 12 April 1991. The blast was significant enough to damage buildings, rip off roofs, and shatter windows throughout the area. While there were no reports of severe injuries, some residents suffered from shock and minor injuries caused by broken glass. The local infrastructure, including kindergartens and schools, was temporarily rendered nonoperational. A. Rozhkov, the Chairman of the Sasovskiy Rayon Soviet, noted that the population was anxious due to the uncertainty surrounding the event. Various theories were circulating among the public and officials, ranging from the detonation of munitions or a meteorite to the sighting of a moving 'fiery sphere' (UFO). Military personnel investigating the site suggested that the explosion might have been caused by 30 tonnes of ammonium nitrate that had been brought to a nearby field for agricultural use. Despite the presence of a large crater—measuring 28 meters in diameter and 4 meters deep—located 1 kilometer from the city, officials stated that no variations in radiation levels were detected. The document concludes that the exact cause of the explosion remained a mystery at the time of writing, pending further chemical and physical analysis by the USSR Academy of Sciences.