Revelers run with Torrestrella's fighting bulls along the Calle Estafeta during the second day of the San Fermin Running Of The Bulls festival in Pamplona, Spain, July 7, 2014. The annual Fiesta de San Fermin, made famous by Ernest Hemmingway's 1926 novel "The Sun Also Rises", involves the running of the bulls through the historic heart of Pamplona to the bull ring. Tens of thousands of expectant party-goers holding red scarves squeezed into the town hall to kick off 204 hours of music, dancing, drinking, bullfighting, and for the brave or unwary, a 902-yard daily sprint in front of six fighting bulls known as the Running of the Bulls. The festival runs until July 14.

A woman gets crushed as thousands of revelers sing and dance during the opening and the firing of the "Chupinazo" rocket which starts the 2014 Festival of the San Fermin Running of the Bulls in Pamplona, Spain, July 6, 2014.

A couple shade themselves following the midday Chupinazo rocket announcing the start of the San Fermin festival in Pamplona, July 6, 2014.

Revelers wave their arms as the band plays during the opening and the firing of the "Chupinazo" rocket which starts the 2014 Festival of the San Fermin Running of the Bulls, July 6, 2014.

Water-soaked revelers celebrate following the midday "Chupinazo" rocket announcing the start of the San Fermin festival in Pamplona July 6, 2014.

Revelers cheer and throw red wine as they prepare for the opening and the firing of the "Chupinazo" rocket which starts the 2014 Festival of the San Fermin Running of the Bulls in Pamplona, Spain, July 6, 2014.

Revelers throw a woman to the air during the opening and the firing of the "Chupinazo" rocket which starts the 2014 Festival of the San Fermin Running of the Bulls in Pamplona, Spain, July 6, 2014

A runner falls in front of a Torrestrella fighting bull at the Estafeta corner during the first running of the bulls at the San Fermin festival in Pamplona, July 7, 2014.

A steer from the Ranch of Torrestrella runs into a runner entering the bullring during the second day of the San Fermin Running Of The Bulls festival, July 7, 2014 in Pamplona, Spain. One runner was gored and four others suffered light injuries in a run that lasted two minutes and twenty five seconds, according to local media.

Revelers run with Torrestrella's fighting bulls along the Curva de Estafeta during the second day of the San Fermin Running Of The Bulls festival in Pamplona, Spain, July 7, 2014 in Pamplona, Spain.

Anti-bullfighting demonstrators protest against the bulls runs, while displaying banners which read in English and Basque, ''You Run. Bulls Die'', on the Ayuntamiento Square in Pamplona, Spain, July 5, 2014.

Medical services carry a runner after he was charged by the Torrestrella's fighting bulls along the Calle Estafeta during the second day of the San Fermin Running of the Bulls in Pamplona, Spain, July 7, 2014.

Spanish rejoneador (bullfighter on horseback) Sergio Galan performs at the Plaza de Toros on the first day of the San Fermin festival in Pamplona, Spain, July 6, 2014.

A band plays music during the opening and the firing of the 'Chupinazo' rocket which starts the 2014 Festival of the San Fermin Running of the Bulls, July 6, 2014.