A spokeswoman for police in the Sauerland region east of Cologne says human remains found near the site of yesterday's crash likely belonged to the pilots, aged 50 and 43.
The Learjet was taking part in a maneuver with two Eurofighter jets when it collided with one of the military planes near the town of Elpe. It crashed 90 metres from a residence.
Police spokeswoman Bianca Scheer said today that prosecutors have begun an investigation into possible negligent homicide on the part of the fighter pilot.