On Wednesday two men, one from the U.S. and one from Spain, were gored at the Bulls of Pamplona festival in Spain.

The American man is Bill Hillman, a 32-year-old Chicagoan and co-author of a book called "Fiesta: How to Survive the Bulls of Pamplona," the Associated Press reports. Hillman has also written various articles for Outside Magazine on bull running.

Hillman was reportedly gored twice in his right thigh during a "daily bull run," AP reported.

"The young man had just tripped up and had fallen face up on the ground when the Victoriano bull gored him in his right leg," the festival's official website said.

A medical report cited on the website said that Hillman suffers "a wound to his interior lower right thigh in the distal area near to his knee and another wound in the interior face of the lower thigh." The report adds that Hillman's "nerve area" was not disturbed, and his condition is "not serious."

According to Fiske Harrison, a friend of Hillman, the man was gored by a suelto, or a loose bull separated from the rest of the pack

"He is in surgery now, but seemed okay, indeed happy given the amount of painkillers he was on," Harrison wrote in his blog. "From what I could understand of what he was saying, and looking at the photo ... the bull's horn went through his right thigh, but missed the artery and it seems the bone as well. I took his wife Enid in the taxi to see him ... and she is with him now."

In addition, a 35-year-old Spaniard with the initials J.R.P. also suffered a goring "to his thorax area" today, the festival's website reported. The Hospital of Navarra stated that he is in serious condition.

Three other Spaniards were also treated for injuries after falling during the run.

Since 1924, 15 people have died after being gored at the festival. The last person to die was a 27-year-old man from Madrid, who was gored in the neck in 2009 according to Reuters.
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Follow Scharon Harding on Twitter: @ScharHar