People living in Canary Wharf were perplexed last night by the mysterious light that appeared to be coming from below the water.
Local Juliana Asayevich shared a video of the river - asking residents in the Canary Wharf and Isle of Dogs group what the flashing light could be.
And one person said: "It’s a UFO. Unidentifiable floating object."
Another resident said it could be a light from a bike as they said they remembered an incident where a bike was dumped in the canal.
A third joined in: "The aliens have obviously landed and are preparing for earth invasion."
And another said: "Seems like a spotlight from up top rather than from below?" while a fifth resident suggested that it's someone's iPhone going off.
Adding to the comments, one person sarcastically said the light could be coming from "an underwater party hosted by Sadiq Khan."
This comes after a mysterious object was spotted on Google Earth by a Reddit user who believes it’s a “crashed UFO.”
User dansterdj believes he’s spotted a strangely shaped object, that is suspiciously followed by a trail of sand, on Starbuck Island, Kiribati.
In his post, captioned: "Crashed UFO on Starbuck Island,” the user explained his theory to the popular Reddit forum "conspiracy" – that has 1.6 million members.
He wrote: "Visible on Google Earth showing a massive trail behind the object indicating high velocity and great amount of energy to go that far!"
His suggestion that the object was a “crashed UFO” sparked a stream of comments on the site online where fellow conspiracy theorists speculated how the odd object ended up there.
One user commented: "Doesn't look as much like an impact as it does like it was rolled or dragged there."
Another wrote: "Idk (I don't know) what this or if it's a UFO. But it's cool as f***."
While another quipped about the content: "Upvoting for something that doesn't have to do with COVID or politics".
The latest UFO based pictured debate comes just a few months after a popular YouTuber claimed to have spotted a similarly suspicious triangle shaped-object on Google Earth.
Believed to be submerged off the coast of an icy island in Antarctica, he pointed to out the object in question and estimated its size and shape – even claiming it had links to an old US navy operation.
He said: “Maybe it's a remnant from the fabled UFO battle which took place during the infamous Operation Highjump."
Operation Highjump was a real mission led by The United States Navy Antarctic Developments Program in 1946 to set up a research base.
There's a conspiracy theory that the mission resulted in a large loss of life after a battle with UFOs.
The US Navy has never claimed this to be true.