Officers from Nepean Police Area Command are appealing for public assistance as they continue their investigation into a brawl at Penrith earlier this month.
About 11pm on Saturday, February 6, emergency services were called to the carpark of a hotel on High Street, Penrith, following reports of a brawl involving up to 15 people.
An 18-year-old man was knocked unconscious during the incident. He was treated at the scene and taken to hospital for further treatment.
Police have been told an electronic stun device was found on the ground and picked up by a hotel employee. He sustained a minor hand injury but did not require medical treatment.
As inquiries continue, police have released CCTV images of several males they would like to speak to as part of the investigation.
All of these images are available to view via the NSW Police Facebook page.
The men involved are believed to be aged from their late teens to early twenties.
Anyone with information about this incident is urged to contact Crime Stoppers on 1800 333 000 or at www.nsw.crimestoppers.com.au.