Click through and watch the video.
If the video is real, it’s really creepy:
Parents and children are convinced a ghost is to blame.
They were so spooked they reported the swing to cops after it began moving four months ago.
The phenomenon flummoxed police, who called physics professors into Firmat, Argentina.
But so far the boffins have failed to find a logical explanation.
Locals claim the seat moves nonstop for TEN DAYS before stopping dead, while other swings remain still.
Teacher Maria de Silva Agustina said yesterday: “One child called it the Blair Witch Playground. We believe it is haunted.”