A young man has been gored by a large fighting bull in what a world-renowned Spanish surgeon says is the biggest goring wound he has ever operated on.

Benjamin Miller, 20, from Georgia in the US, is recovering in the intensive-care unit of a hospital in western Salamanca after being severely injured during a bullfighting festival in Ciudad Rodrigo.

Surgeon Enrique Crespo was called to operate on Mr Miller, who was injured on Saturday, the first day of the "Carnaval del Toro".

"It's not the worst injury I've seen, but it's the biggest goring wound I've ever had to operate on," Dr Crespo said.