(CNN) At least three people were gored Sunday as the annual running of the bulls began in Pamplona, Spain, according to local authorities.

The bull run draws daredevils from around the world to the San Fermin festival , which kicked off Saturday in northern Spain with music, parades and bullfights.

The first "encierro" or bull run on Sunday through Pamplona's old quarter left six people injured, including three who were gored, the Royal Navarre Hospital said in a statement

The first bullrun of the 2019 San Fermin festival in Pamplona, Spain, kicked off Sunday.

The hospital said two of the goring victims were Americans. One was identified as a 23-year-old man from Kentucky and the other as a 46-year-old man from San Francisco. The third victim was identified as a 40-year-old man from La Rioja in northern Spain.

Three others suffered injuries ranging from mild to serious, according to the hospital.

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