Firefighters are battling to contain a blaze threatening a renowned national park in southern Spain. The blaze has already led to the evacuation of some 2,000 people. <br/><br/>Authorities have sent additional firefighters to tackle the flames at the Donana Natural Park in southwestern Spain near Huelva. <br/><br/>A fire service spokesman said, the flames are not under control and they are spreading. He said no injuries have been reported.The blaze comes a week after wildfires killed over 60 people in neighbouring Portugal. <br/><br/>Strong winds and scorching heat are complicating efforts to fight the blaze, which broke out on Saturday near the town of Moguer.