UPDATE:
Homicide Squad officers with the assistance of Mandurah Detectives are investigating the death of a man during an incident on Leighton Road, Halls Head at around 5am this morning (8 July 2017).
Two people are currently assisting police with their investigation.
EARLIER: Police in Mandurah have closed a section of Leighton Road in Halls Head following a serious overnight incident.
Detectives and forensic officers are investigating after a man was left with serious injuries following a physical altercation with another man in the early hours of Saturday morning.
Little is known at this stage about the incident, but a police spokeswoman said one male had been taken to hospital.
Investigations are under way.