Two bodies have been found after Italian Tornado fighter jets collided and crashed during training over eastern Italy, Italian media say.
It is thought the bodies are of a man and a woman, Ansa news agency reports.
Each plane had a pilot and a navigator and the fate of the other two crew members is still unknown; it is hoped that they might have ejected to safety.
The jets came down 30km (18 miles) from Ascoli in the Marche region, sparking fires in a forest below.
The two planes, which were based at Ghedi in the north-west, had been flying low at the time of the collision, reports say.
The Ansa agency said the crew members comprised three men and a woman.