The British Horseracing Authority has been made aware of a video circulating, seemingly showing an individual jumping onto the back of a dead horse.
A decision has not yet been taken on whether to launch a formal investigation into the video, which appears to have been filmed on a gallops where race horses are trained.
Sky News understands that the Irish Horseracing Regulatory board has also been made aware of the video.
It could present another image problem for racing, coming just two days after a picture emerged showing leading trainer Gordon Elliott sat astride a dead horse on the gallops at his stables.
There is no suggestion that the footage is connected in any way to the incident involving Mr Elliott.
Mr Elliott, a three-time Grand National-winning trainer, was suspended from British races on Monday pending an investigation.