Footage has emerged of a swirl in the Thames which the filmer identifies as a "swimming creature."
The video, captured on October 25 in London, UK, then shows the unidentified creature by she bank of the river.
"I was at work today, I’m about the 8th floor up when me and my workmate noticed a weird fin like object coming up and down and making some weird swirls in the water," the filmer told Newsflare.
"We keep our eyes out for about 5 minutes and it came up again right by the shore part. And then disappeared again."