Nearly 400 people have been treated by emergency services personnel this weekend in the northern Spanish city of Pamplona, where the world-famous San Fermin festival is taking place, Red Cross and health officials said Sunday.

Two Spanish men were hospitalized Sunday after the second running of the bulls at the festival, but both are listed in stable condition, doctors said.

A 35-year-old man suffered a fractured vertebra, while a 29-year-old broke his nose and sustained multiple bruises.

The 73-year-old man gored during the first running of the bulls on Saturday remains hospitalized.

Hundreds of people have been treated for a variety of injuries and ailments, ranging from alcohol poisoning to bruises, the Red Cross said.

The star of Sunday's run, traditionally the most heavily attended of the festival, was "Navajito," a black bull from the Eduardo Mira estate in Seville.

A large number of visitors are expected to leave the city Sunday after enjoying the first weekend of the festival.

People also gathered on Sunday to remember German Rodriguez, who was shot dead in the 1978 riots that forced the cancellation of the festival.

The nine-day San Fermin festival got under way on Friday 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.

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." EFE