Two men have been arrested on suspicion of attempted murder.
A number of males have been taken to hospital for treatment for serious injuries.
It is understood a number of men were stabbed in a house and then also out in the street.
Superintendent Darrin Jones said : “At this stage police are working to establish the circumstances surrounding this incident.
“I would appeal to anyone with any information to contact officers in Musgrave on 101 or Crimestoppers anonymously on 0800 555 111.”