People cover their bodies with theatrical blood as they hold buckets with slogans to protest against bull runs in front of the City Hall on the eve of the famous San Fermin festival, in Pamplona, northern Spain, Tuesday, July 5, 2016. The festival will begin on July 6 with the “txupinazo” opening ceremony, with people participating in bull runs, music and dance, through the old city. (Photo by Alvaro Barrientos/AP Photo)





A woman with her face covered by theatrical blood takes part in a protest against bull runs in front of the City Hall on the eve of the famous San Fermin festival, in Pamplona, northern Spain, Tuesday, July 5, 2016. (Photo by Alvaro Barrientos/AP Photo)





Animal rights activists holds buckets with a slogan reading: “San Fermin is Blood bath” during a protest on the City Hall Square in Pamplona, nothern Spain, 05 July 2016, on the eve of the beginning of the traditional f Sanfermines festival. The action was organized by the animal rights organization PeTA (People for the ethical Treatment of Animals) and “Anima Naturalis” to protest against the cruelty against bulls during the annual Sanfermines festival. (Photo by Jesus Diges/EPA)





An animal rights protester covered in fake blood reacts during a demonstration for the abolition of bull runs and bullfights a day before the start of the famous running of the bulls San Fermin festival in Pamplona, northern Spain, July 5, 2016. (Photo by Susana Vera/Reuters)





Fake blood runs down the bodies of animal rights protesters during a demonstration for the abolition of bull runs and bullfights a day before the start of the famous running of the bulls San Fermin festival in Pamplona, northern Spain, July 5, 2016. (Photo by Eloy Alonso/Reuters)





Animal rights protesters covered in fake blood demonstrate for the abolition of bull runs and bullfights a day before the start of the famous running of the bulls San Fermin festival in Pamplona, northern Spain, July 5, 2016. (Photo by Eloy Alonso/Reuters)





An animal rights protester covered in fake blood demonstrate for the abolition of bull runs and bullfights a day before the start of the famous running of the bulls San Fermin festival in Pamplona, northern Spain, July 5, 2016. (Photo by Eloy Alonso/Reuters)





Animal rights protesters covered in fake blood demonstrate for the abolition of bull runs and bullfights a day before the start of the famous running of the bulls San Fermin festival in Pamplona, northern Spain, July 5, 2016. (Photo by Eloy Alonso/Reuters)





Animal rights protesters covered in fake blood demonstrate for the abolition of bull runs and bullfights a day before the start of the famous running of the bulls San Fermin festival in Pamplona, northern Spain, July 5, 2016. (Photo by Eloy Alonso/Reuters)





Animal rights protesters covered in fake blood demonstrate for the abolition of bull runs and bullfights a day before the start of the famous running of the bulls San Fermin festival in Pamplona, northern Spain, July 5, 2016. The banners read “Pamplona: sea of blood for bulls”. (Photo by Eloy Alonso/Reuters)





Animal rights protesters covered in fake blood demonstrate for the abolition of bull runs and bullfights a day before the start of the famous running of the bulls San Fermin festival in Pamplona, northern Spain, July 5, 2016. (Photo by Susana Vera/Reuters)





A animal rights protester covered in fake blood demonstrate for the abolition of bull runs and bullfights a day before the start of the famous running of the bulls San Fermin festival in Pamplona, northern Spain, July 5, 2016. (Photo by Eloy Alonso/Reuters)





Revellers dressed as zombies bite a bull figure during an enactment of the running of the bulls a day before the start of the San Fermin festival in Pamplona, northern Spain, July 5, 2016. (Photo by Eloy Alonso/Reuters)





A reveller dressed as a zombie bites another reveller during an enactment of the running of the bulls a day before the start of the San Fermin festival in Pamplona, northern Spain, July 5, 2016. (Photo by Eloy Alonso/Reuters)





Revellers dressed as zombies bite a bull figure during an enactment of the running of the bulls a day before the start of the San Fermin festival in Pamplona, northern Spain, July 5, 2016. (Photo by Eloy Alonso/Reuters)





Revellers dressed as zombies take part in an enactment of the running of the bulls a day before the start of the San Fermin festival in Pamplona, northern Spain, July 5, 2016. (Photo by Eloy Alonso/Reuters)





Revellers dressed as zombies bite a bull figure during an enactment of the running of the bulls a day before the start of the San Fermin festival in Pamplona, northern Spain, July 5, 2016. (Photo by Vincent West/Reuters)





Revellers dressed as zombies take part in an enactment of the running of the bulls a day before the start of the San Fermin festival in Pamplona, northern Spain, July 5, 2016. (Photo by Eloy Alonso/Reuters)