At least two people have been injured but no one was gored as hundreds of daredevils took part in the fifth running of the bulls at Spain's San Fermin festival in Pamplona.
Spanish Red Cross spokesman Alfonso Contin today said that two men were treated for minor injuries suffered in falls.
Many runners fell along the wet, cobble-stone route. Some were trampled on by the half-ton beasts.
The runners test their agility and bravery by racing with six fighting bulls along a 850-meter course to the city's bull ring.
The hair-raising "encierros", as the runs are called in Spanish, last three minutes.
The nine-day street-partying festival, immortalised in Ernest Hemingway's 1926 novel "The Sun Also Rises," attracts thousands of foreign tourists.
