Wiltshire Police are investigating an incident which occurred in Tidworth last week and would like to identify potential key witnesses.
In a statement, they said: "At approximately 7.20pm on September 26, two people reported being shot at by a person with an air weapon.
"The victims – a man and woman in their 20s - were walking in Zouch Farm Road towards the Spar shop in Pennings Road at the time of the incident.
"Fortunately, nobody was injured.
"Four people – a 16-year-old boy, two men in their 20s and a man in his 40s – have been arrested on suspicion of possession of a firearm and drug offences. They have since been released on bail while enquiries are ongoing.
"Officers have also seized an air weapon as part of their enquiries.
"We believe there were a number of people in the area at the time of the incident who may have witnessed what happened.
"In particular, we would like to speak to a man who was in the immediate area, who was wearing a blue tracksuit top with the hood up. He is believed to have been aged in his 40s or 50s.
Anyone who can help should call 101 and quote crime reference number 54230102216. Alternatively, call CrimeStoppers anonymously on 0800 555 111.