Casey Crime Investigation Unit detectives are investigating after two groups of youths were involved in an affray last night at Narre Warren.
It is understood approximately 30 people gathered at a Fountain Drive reserve about 9.30pm when a fight broke out between the two parties.
A short time later, one person self-presented to hospital with serious injuries, believed to be from a stab wound sustained during the affray.
A second person was also conveyed to hospital with a serious stab wound.
Most of the youths involved in the incident fled prior to police arrival.
No charges have been laid at this time and investigators are appealing to anyone who may have witnessed the incident or has information relating to the identity of the men involved are urged to contact Crime Stoppers on 1800 333 000 or submit a confidential crime report online at www.crimestoppersvic.com.au
