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PAMPLONA, Spain -- Thousands of daredevils raced through the streets of the northern Spanish city of Pamplona in a hair-raising but relatively clean second bull run of the famed annual San Fermin festival.

Navarra Hospital chief Javier Sesma said there were no gorings in the run Monday and four people were treated in city hospitals for injuries suffered in falls.

The early morning race, which sees thrill-seekers dashing alongside six fighting bulls, lasted just over two minutes.

The nine-day fiesta immortalized in Ernest Hemingway's novel "The Sun Also Rises" is one of Spain's main tourist attractions.