A Greek fighter jet has crashed at a military airbase in Spain, killing 10 people and injuring another 13.

The Defence Ministry says the jet was taking part in NATO exercises when it crashed at the Los Lanos base in the southeast of the country.

Earlier reports said the plane crashed on takeoff, hitting other planes parked on the tarmac.

TV footage showed flames billowing from the crash site, which was shrouded in black smoke.