Thousands of firefighters are battling to bring summer wildfires under control that are ravaging parts of southern Europe. Five French firemen were injured tackling flames from three fires on the island of Corsica.The fires, which have destroyed some 4,000 hectares of forest and bush, are believed to have been started deliberately. In Sardinia, in Italy, a series of bush fires claimed two lives, including that of a shepherd who was trying to rescue his flock. The local governor say he will ask the government to declare a state of natural disaster on the island. The fire emergency is also affecting other parts of Italy. Three blazes are raging in Sicily. In Greece, firefighters continue to tackle blazes that have hit the southern Peloponnese region and the island of Evia. Strong winds coupled with high temperatures had caused the fire to spread rapidly. Spain has been worst hit in the last few days. A fireman has died tackling a blaze in Tarragona, one of several fatalities. Many of the fires are thought to have been started by arsonists. 17 people have already been arrested. Spain remains on high alert as tempertaures soar turning the much of the country tinder box dry.