Northern Territory Police are calling for further information in relation to an incident outside a Darwin nightclub on Sunday morning.

Detective Senior Sergeant Lee Morgan said the incident occurred around 1:45am outside Throb Nightclub on Smith Street.

“Initial investigations into the incident have determined the 56-year-old male victim was pushed prior to falling to the ground where he sustained serious head injuries.

“Detectives have established the identities of the people involved however there are several more people we wish to talk to about the incident.

“In particular, three females who were in line to enter the nightclub, two pedi-cab drivers parked at the front of the premises and two females who were standing outside, about 15 metres from the entrance at the time.

“We believe these people may have information that can assist the investigation.

“We ask that they call 131 444 or contact Crime Stoppers on 1800 333 000.”