At least two people were gored Tuesday during the running of the bulls at the San Fermin festival in the northern Spanish city of Pamplona.

The run, which featured bulls from the Victoriano del Rio estate, was the fastest so far at the festival.

The estate's bulls, which made their debut at the festival last year with an equally fast run, covered the 850-meter (approximately half-mile) run from the Santo Domingo stockyard to the bullring in two minutes and 15 seconds.

Tuesday's run, the festival's sixth, drew fewer runners than the previous ones.

Runners went down at several points ahead of the fast-moving herd and at least two were gored near the end of the run.

The nine-day San Fermin festival got under way on July 6 with the traditional firing of a rocket in front of Pamplona city hall amid the shouts of thousands of people, many of them visitors from around the world.

A total of 2.7 million euros ($3.8 million) was budgeted this year for the festival, whose program includes 342 music shows, 137 family related activities and 33 events involving bulls.

The runs in Pamplona are filled with tension and emotion, and occasionally result in tragedy, with 15 runners having been killed since statistics began to be kept in the early 20th century and many others having suffered gorings and other injuries.

The run to the bull ring is especially dangerous because some people take part in the event after all-night drinking binges, which makes them reckless and more likely to get too close to animals that weigh in excess of 500 kilos (1,100 pounds).

The running of the bulls is monitored by experts who control the route and try to prevent accidents, but, inevitably, runners fall, suffer cuts and bruises, and are even gored by the animals.

As many as 1 million visitors from around the world descend on Pamplona during the festival - many of them Americans but also Frenchmen, Britons, Italians, Germans and Latin Americans.

The festival, begun about 400 years ago, was popularized by Ernest Hemingway in his 1926 novel "The Sun Also Rises."