UFO sightings in Russia
There have been 3 significant alleged sightings of unidentified flying objects in Russia. The first being in 1908, referred to as the Tunguska event, this was a mutual explosion of a comet, which some consider to be an explosion of an UFO. The next major alleged sighting occurred in 1986, the Height 611 UFO incident, this refers to a UFO crash claimed to happen in Dalnegorsk, Primorsky Krai, USSR, on January 29, 1986. The most recent sighting took place between 1990-92 these sightings were the Sassowo explosions, two mysterious explosions occurred on April 12th, 1990 and July 8th, 1992, equivalent to 25 tons TNT.