Revelers celebrate Toro de Jubilo in Spain

The Jubilee Bull of Medinaceli is a traditional festive event dating back to the 16th century in which a bull, covered with mud from the legs to the head to avoid burns, wears on its horns a metal frame (gamella) on which two large balls of fire burn, while the animal is tied to a pole with a rope. (Photo: AFP)

A bull with flammable balls attached to its horns, is pictured during the "Toro de Jubilo" (fire bull) festival in Medinaceli near Soria, Spain on November 11, 2017. It is traditionally held annually at midnight in Medinaceli. (Photo : AFP)

A reveler runs ahead a bull with flammable balls attached to its horns, during the "Toro de Jubilo" (fire bull) festival in Medinaceli near Soria, Spain on November 11, 2017. The event begins once a bull is tied to a post and flammable balls of tar are attached to its horns. It is protected from the flames with mud applied to its face and back. (Photo : AFP)

A reveler lights flammable balls attached to a bull's horns, during the "Toro de Jubilo" (fire bull) festival in Medinaceli near Soria, Spain on November 11, 2017. Revelers dodge the animal when the event begins till the flammable material burns out. (Photo : AFP)

Revelers attach flammable balls to the bull's horns during the "Toro de Jubilo" (fire bull) festival in Medinaceli near Soria, Spain on November 11, 2017. A Fire Bull walks in the arena in Medinaceli. (Photo: AFP)

A bull with flammable balls attached to its horns, is pictured during the "Toro de Jubilo" (fire bull) festival in Medinaceli near Soria, Spain on November 11, 2017. Fireworks explode once the flames on the bull burn out. (Photo : AFP)

A bull with flammable balls attached to its horns, is pictured during the "Toro de Jubilo" (fire bull) festival in Medinaceli near Soria, Spain on November 11, 2017. The Jubilee Bull of Medinaceli is a traditional festive event dating back to the 16th century. (Photo : AFP)