Northern Territory Police have arrested a 20-year-old man following an alleged serious assault in Gray, a suburb of Palmerston near Darwin.

Police said the incident occurred in Priest Circuit shortly after midnight on Thursday, 15 October 2026. At approximately 12:50 am, officers received a report that a man in his 20s had allegedly been physically assaulted by his male cousin, also in his 20s, using an edged weapon.

Police attended the location shortly after receiving the report and began investigating the circumstances surrounding the alleged assault.

The victim sustained injuries serious enough to require hospital treatment. However, police confirmed that his injuries were not considered life-threatening. Authorities have not released further details about the precise nature of his injuries or the circumstances that led to the confrontation.

Investigators from the Northern Territory Police Force's Northern Domestic Violence Investigation Unit became involved in the case. At around midday on Thursday, officers arrested the alleged offender at a residential address in Palmerston. Police confirmed that the 20-year-old remained in custody following his arrest, with charges expected later that day. The initial police statement did not specify the exact charges that would be laid, and no final charging outcome should be assumed from that announcement alone.

The investigation remains ongoing as officers work to establish the full circumstances of the incident. Police have not publicly confirmed what led to the alleged confrontation or whether any further people were involved. Authorities are asking anyone who may have information about the incident to contact Northern Territory Police on 131 444. Anonymous information can also be provided to Crime Stoppers on 1800 333 000 or through its official website. Callers should quote police reference number NTP2600100172.

Police have also included information about support services for people experiencing domestic or family violence. The national 1800RESPECT service can be contacted on 1800 737 732, while Lifeline is available on 13 11 14 for people who need emotional support.

The case remains under investigation. The allegations have not been tested in court, and the arrested man is presumed innocent unless proven guilty.