© Agence France-PresseFiremen try to extinguish a blaze near the eastern Spanish village of Ures de Medina, close to Medinaceli on July 23, 2009.
Horta De Sant Joan -- Some 500 people were battling Wednesday a wind-fuelled wildfire in northeastern Spain which claimed the lives of four firefighters and seriously injured two others, Defence Minister Carme Chacon said Wednesday.
"We are working against the clock with all the human and material means which are capable of working in an area of difficult access," she told public radio RNE from the site of the blaze in Els Port national park near Tarragona.
The four veteran firefighters were killed Tuesday when the direction of the wind suddenly changed, whipping up the blaze and surrounding the men by flames.
It was the worst tragedy in Spain involving firefighters battling a wildfire since 11 were killed in 2005 as they fought a blaze that destroyed about 13,000 hectares (32,000 acres) of pine forest near the central city of Guadalajara.
One of the two firemen is in "very serious condition" in hospital with kidney failure, the head of the health service in Catalonia, Marina Geli, told reporters. The 31-year-old suffered burns to 50 percent of his body.