Thames Monster? ‘Nessie’ speculation rife as mysterious creature spotted in London (VIDEO, POLL)

© Penn Plate
A mysterious creature spotted in London’s River Thames has led to feverish speculation among social media users wondering if the Loch Ness Monster is vacationing in the British capital.

The baffling sight was captured on video from a cable car in Greenwich and shows the “beast” swimming near the O2 arena, rising to the surface before vanishing again.

The shaky footage was recorded by Penn Plate, who wondered if he was witnessing a whale or submarine.

Social media users, however, had more creative suggestions.

An increased number of dolphins, porpoises and seals have been spotted in the Thames over recent years, as well as - albeit less commonly - whale sightings.

The footage has been viewed more than 2 million times and river tour operators say it has given their business a boost.