Defence chiefs are currently trying to establish if the pilot of the F18 fighter plane ejected before it hit the ground.
The new accident comes just five days after a Spanish Air Force Eurofighter crashed near a public park in Albacete south of Madrid as it returned from a military display.
The pilot Borja Aybar, whose wife and young baby were waiting for him at the air base he was preparing to land at nearby, died.
The accident happened at about 11am local time today.
Firefighters stationed at the air base are leading the emergency response.

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Defence sources told Spanish newspaper ABC the pilot “would have been unable to eject” although there is yet no official confirmation about his fate.
Thick plumes of black smoke could be seen coming from the crash scene.
Cristiano Ronaldo was said to keep a Gulfstream G200 he bought at Torrejon de Ardoz so he could visit Moroccan kick boxer friend Badr Hari.
David Beckham also used to fly in and out of the air base, a commercial airport which operates as a joint-use facility between the Spanish Ministry of Defence and the Ministry of Public Works, when he played for Real Madrid.
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