In the skies and on the ground, a battle is being waged against wildfires but swathes of southern Europe continue to go up in flames.Spain remains the worst hit country with several regions affected. Homeowners and holidaymakers have been forced to flee. The number of dead has risen to six. People in the eastern province of Castellon on the Mediterranean coast are the latest to be caught up in the disaster. One resident there described how he risked the advancing fire to free some dogs from a house and retrieve a car for a colleague. All of those killed in Spain were firefighters, the latest dying of burns in hospital today. But this summer scourge is causing misery on a broader scale. From Greece, Turkey and Algeria to the islands of Corsica and Sardinia, wildfires have been raging. On Sardinia, things are improving but the situation remains volatile with a number of fires still posing serious problems. Two people have died – a shepherd who perished trying to protect his flock and a farmer who suffered a heart attack attempting to escape the flames. Firefighting aircraft from a special European Union intervention force are helping Italian teams on the frontline. An EU monitoring agency had warned there was a high risk of fire along most of the Mediterranean.