Among one of the avenues of the investigation being explored by police is if the incident is drug-related,

Police have called for help from the community to gain information over the attack at Basin View, south of Nowra in the early hours of Sunday, May 3 that left the 28-year-old victim with serious head injuries.

The victim was taken to Shoalhaven District Hospital in a critical condition, before being airlifted to a hospital in Sydney with serious head injuries.

He remains in a Sydney hospital and is expected to undergo further surgery.

South Coast Police detectives have formed Strike Force Ardnaree to investigate the incident.

Police were called to a home on Basin View Parade about 3.20am on May 3 following reports a man had been assaulted, finding the man lying in the garage suffering serious head injuries and bruising.

South Coast Police District Crime Manager, Detective Inspector Scott Nelson, said police believe the attack was targeted.

"We know a number of people were involved in this assault. We don't know how many and we don't know the details of those people," Det Insp Nelson said.

"This was a vicious assault, it was targeted, it wasn't a random attack."

Det Insp Nelson said it appears some sort of weapon might have been used in the attack but at this stage would not say what it was.

"We know other people were present at the time," he said.

"They have been assisting with inquiries but we know further people in the community, who may not have been there, but know exactly what went down.

"They may know the circumstances around the event and how the incident came about and we ask them to come forward."

Det Insp Nelson said the victim was known to police but denied the incident was gang-related, including the likes of outlaw motorcycle gangs (OMCG) activity, who police had targeted during recent raids on the South Coast.

"Unfortunately, all these types of crimes ultimately come back to being drug-related," he said.

Police are also appealing for anyone who might have been seen a small black hatchback in the area around the time of the incident or earlier the previous evening to come forward.

The car is described as being similar to a Suzuki Swift.

"We are not aware of the people who were there at the time and we believe the vehicle may indicate some links to that and it is part of our inquiries," he said.

"I want the community to know we will not tolerate this kind of violent, senseless activity."

Investigations are continuing.

Anyone with information that may assist strike force investigators is urged to contact Nowra Detectives on 4421 9699 or Crime Stoppers on 1800 333 000 or https://nsw.crimestoppers.com.au.

Information is treated in strict confidence.

Read more: Crime/Court