Hundreds of thrill-seekers ran through the streets of Pamplona Monday alongside massive bulls as the sun rose on Monday. One man was reported gored in the leg.

Runners try to get out of the path of a pack of bulls during the fourth running of the bulls of the San Fermin festival in Pamplona July 10, 2006. A pack of fighting bulls run through the centre of the town to the bullring every morning during the week-long festival made famous by U.S. writer Ernest Hemingway. [Reuters]

In the fourth of eight planned runs at Pamplona's San Fermin festival, six bulls charged along the 800-meter (875 yards) route leading to the bull ring in just over two minutes with only one incident where a leading bull caught a man.

Emergency services were called to the cobblestone streets after the bulls had run past, however the severity of the injury was not immediately known.

Preliminary Red Cross information said one young man was gored in the leg and several offered suffered bruises and sprains.

The worst injury so far this year came on the opening day when an American man was left partially paralyzed in a side event after the run. He was thrown by one of five feisty young cows set free in the Pamplona bull ring for people to taunt and dodge.

He has been identified as Ray Ducharme, a 31-year-old bond trader for Bank of America in Charlotte, North Carolina.

Since record-keeping began in 1924, 13 people have been killed during the runs. The last death was in 1995.