A fire in San Gregorio, Zaragoza, has so far destroyed around 5,000 hectares of scrub, grass land and pine forest.
The fire began at 14:00 on Tuesday and affects a large military base as well as the municipalities of Tauste and Remolinos. Much of the damage, covering 3,500 hectares, is within the area forming part of the military base.
Firefighting operations have been hampered by 20 kph winds and temperatures of around 40 degrees.