Officers investigating an incident in Park Road, Barry, are continuing their appeal for information.
Police were called to Park Road, near Porthkerry Park, at around 10.30pm Monday, April 13.
There were reports that a person had been assaulted and of ‘loud bangs’ like gun shots.
However, no victim has come forward nor been identified.
A total of seven people have now been arrested in connection with the incident.
Dominic Bily, 18, from Llanrumney, Cardiff, has been charged with possession of a firearm with intent to cause fear of violence and has been remanded in custody.
Six other people arrested are on police bail pending further enquiries.
Anyone with information about the incident is urged to make contact using reference 2600113574 at https://www.south-wales.police.uk

Former Holm View Leisure Centre could become education and community hub
ScoutsCymru members represent Wales at Royal Albert Hall Festival of Remembrance
Plans for indoor market at former Barry Wilko move forward
Police given additional powers to deal with anti-social behaviour in Barry
Senedd passes supplementary budget with £60m boost for additional learning needs
Future of planned festive events in question after criminal damage to Barry Town Hall
Consultation to open on plans for 35MW solar farm near Penarth
No Trains through the Vale of Glamorgan this Sunday
Police and Cardiff City launch operation to tackle matchday anti-social behaviour
Free leaf and fallen fruit collections return in the Vale
Barry retains Fairtrade Town status until 2029
£1m improvements planned for Pencoedtre Park as splashpad work set to begin
Plan submitted for new independent school on site of well-known charity farm
Is your hot water bottle safe?
Solicitor sentenced for defrauding Cancer Research UK
Cate is crowned champion!
WATCH: Winner of The Voice UK Cate McHugh duets with Sir Tom Jones
Barry filmmaker takes her documentary to the big screen in New York
Pupils leave their mark on new school at steel signing event
£3m refurbishment plans revealed for Cowbridge Town Hall