Detectives have said it is possible one of the suspects involved in the attempted abduction of an RAF serviceman suffered a visible facial injury.
It comes as police follow-up a number of calls and CCTV enquiries into the incident which happened at RAF Marham on Wednesday July 20.
Two men, described as Middle Eastern in appearance, were seen to be involved in the incident; however police have said more people could have been inside the vehicle.
The main suspect, who grabbed the serviceman while he was out jogging, and attempted to pull him into a dark coloured people carrier, is thought to have suffered an injury during the incident after being challenged by the victim.
They were involved in a scuffle during which the victim, aged in his late 20s, head-butted his attacker before punching him, causing the suspect to fall to the floor. It was at this point the second suspect, who was armed with a knife, appeared and went to the aid of his accomplice allowing the victim to run away and get help.
The victim managed to fight off his attacker and head-butted him, we believe around the eye-socket, so it is possible he suffered swelling and bruising in this area. He was then punched which caused him to fall to the ground. Clearly the extent of his injuries is unknown however we do not believe either attack caused the suspect to bleed, contrary to reports circulating in the media.
Police say they've received more than 20 calls and names of suspects following a Crimewatch appeal over the serviceman attack at RAF Marham.
Reconstruction of attempted abduction of an RAF Marham serviceman will feature on BBC's Crimewatch programme tonight.
A servicemen who was the victim of an attempted abduction at RAF Marham in Norfolk says his world has been turned upside down.