An unexplained shadow which appeared to run right through football fans at a match in Bolivia has left observers perturbed.
The human silhouette was filmed moving through the terracing during a Fox Sports live transmission of Bolivia's The Strongest versus Defensor Sporting, of Uruguay, in La Paz's Hernando Siles Stadium on Thursday.
YouTube link. Slow motion footage.
Observers noted the figure appears to go unnoticed by fans seemingly seated in its path.
Local media added that it moves curiously fast given the cramped seating in the stadium which allows only limited room.