A 38-year-old man is in a critical condition after an alleged stabbing in Bidwill, in Sydney's west, with NSW Police launching an investigation into the circumstances surrounding the incident.

Emergency services were called to Moreton Bay Square, Bidwill, at about 8:10pm on Sunday, 6 September 2026, after reports that a man had been found with a stab wound to his stomach. Officers from the Mt Druitt Police Area Command attended the location, where they found the injured man.

NSW Ambulance paramedics treated the 38-year-old at the scene before transporting him to Westmead Hospital. Police said he suffered life-threatening injuries and remained in a critical condition following the stabbing.

Officers established a crime scene at Moreton Bay Square as investigators began examining the circumstances surrounding the incident. Police are working to determine what happened before the man was stabbed and whether anyone else was involved.

The investigation was complicated when a group of approximately 10 men and women allegedly attended the location while police were securing the crime scene. According to NSW Police, the group allegedly attempted to interfere with the investigation.

Police intervened and the crowd eventually dispersed. NSW Police said there was no further incident after the group left the area.

Investigators are now appealing for information from members of the public who may have witnessed the stabbing or observed suspicious activity around Moreton Bay Square at the relevant time.

Police are particularly interested in receiving any dashcam recordings or mobile-phone footage captured in the area around the time of the incident. Such footage could assist detectives in establishing the movements of people and vehicles before and after the stabbing.

The crime scene investigation is continuing, with officers expected to examine available evidence and speak with witnesses as they work to establish the full circumstances of the alleged attack.

Police have urged anyone with information to contact Mt Druitt Police Station or Crime Stoppers on 1800 333 000. Information provided to Crime Stoppers can be handled confidentially.

The incident has left the injured man fighting for his life in hospital while detectives continue their inquiries. At the time of the latest police update, no charges had been announced in connection with the stabbing.

Police have also reminded members of the public not to submit information through NSW Police social-media pages. Anyone with relevant information should instead contact investigators or Crime Stoppers directly.

The investigation remains ongoing, and police are continuing to gather evidence to determine exactly how the stabbing occurred and identify any person responsible.