Police are currently on scene at a serious assault at Brighton, according to SA Police.
At 8.30pm, Thursday 9 February, police and emergency services were called to the Brighton Jetty after reports there was an altercation occurring.
One man has been taken to hospital in a serious condition, while another man was treated for minor injuries at the scene.
Investigation into the circumstances surrounding the altercation are continuing.
Police are appealing to anyone who may have witnessed the altercation, who has not yet spoken to police, to contact Crime Stoppers on 1800 333 000 or online at https://crimestopperssa.com.au/