14. Lake Baikal humanoids:
Declassified Soviet-era documents describe a wide variety of anomalous phenomena seen by the Russian fleet on the lake. One of the reports related to aliens in Baikal describes a case in 1982, when Navy scuba divers working in the lake reported humanoid creatures at a depth of 50 meters, dressed in silvery suits. The report claims that three scuba divers were killed while chasing the creatures, and four more divers were seriously injured.