Thousands of people took part in the second bull run in Pamplona this morning, despite nine people being seriously hurt yesterday.
There were no reports of major injuries today.
One bull repeatedly tossed several people around the entrance to the bull ring and knocked one runner to the ground.
Three men suffered slight injuries but there are no reports of gorings.
Six people were badly gored in yesterday's run.
Today, thousands of people, mostly young men dressed in the region's traditional white shirt, red kerchief and sash, took part in the six-minute morning run.
Theeight-day San Fermin Fiesta began yesterday.
The runs, or encierros, draw thousands of people from around the world.
The centuries-old festival, which features a non-stop street party, became internationally famous following the 1926 publication of Ernest Hemingway's novel, The Sun Also Rises.
Since record-keeping began in 1924, 13 runners have died and more than 200 have been injured in the bull runs.
The last fatality was an American in 1995, whose death was the first since 1980.