This is another UFO case originating from the 1960s; October 1967 in this case. During this event, an object fell into Shag Harbour near Nova Scotia, Canada. At first it was assumed to be a downed aircraft, with locals and authorities searching the water for any survivors.
However, after hours of searching nothing turned up. Declassified documents have revealed that there were secret searches conducted by the government. And a mysterious underwater object showed up near an American base on Canadian soil.
Yet, the official stance remains that no object was found on the harbour floor. It has fishy written all over it.