Northern Territory Police are investigating a serious harm incident in the city overnight.

At about 12:30am, police received a report of a stabbing on Cavenagh Street, Darwin City. Upon arrival, crews located a male, aged 36, who had been stabbed in the stomach. Paramedics conveyed the victim to Royal Darwin Hospital in a critical condition, where he remains in the ICU.

A crime scene was declared, and the area was cordoned off. Major Crime detectives are investigating the circumstances surrounding the incident.

Anyone with information or who may have witnessed the incident is urged to contact police on 131 444.