Eerie footage has emerged showing a hospital trolley moving on its own in the courtyard of a medical facility in Argetina.
The apparent paranormal activity was caught on CCTV at a provincial hospital of the city of Rosario, in the north-eastern province of Santa Fe.
It shows an unattended stretcher on wheels suddenly start to drift forwards.
Over a few seconds it gets quite feisty, eventually zooming about so much that it crashes off the hard courtyard on to a patch of grass.
Wind cannot be behind the movement, as plants in the video are still.
The clip was posted on social media where viewers erupted into debate about whether the hospital was haunted or a prank was being played.
The Health Ministry of Santa Fe tried to put the debate to bed by saying that two hospital workers had rigged up a system of ropes so they could move the trolley without being seen.
But local media reported that two hospital workers had got into trouble for faking the ghost video, using thin, translucent string, perhaps fishing line, to move the trolley and create the poltergeist scene.
They were not named and the punishment they faced was not reported.