In Photos: Spain’s annual bull running festival

The San Fermín festival, featuring a daily running of the bulls, is one of Spain’s best-known celebrations, drawing hundreds of thousands of visitors to the northern city of Pamplona each year (Source: Photo by AP)

The festival also features parades, music, religious ceremonies and round-the-clock street festivities (Source: Photo by AP)

In order to participate, thousands of revellers slipped into the traditional all-white outfit topped with red scarves and filled the streets of the city (Source: Photo by AP)

It gained worldwide fame after Ernest Hemingway featured it in his 1926 novel “The Sun Also Rises,” which marks its 100th anniversary this year (Source: Photo by AP)

'El Chupinazo' commences the festival where a rocket is launched from city halls to mark the start of celebrations (Source: Photo by AP)

From the second day onwards, the chasing and running take place in the narrow streets of Pamplona's Old Quarter which is a stretch of 800 meters (Source: Photo by AP)

There are eight runs in total, and usually, each lasts between 3-5 minutes. Many are seen participating while several just enjoy the show from their balconies (Source: Photo by AP)

Although dozens of animal rights activists have protested against the festival calling it "prehistoric," the enthusiasm of people has always remained high (Source: Photo by AP)