Queensland Police say they are investigating the death of the 17-year-old boy in Cairns on Saturday and treating it as suspicious.
Police said officers arrived at Lychee Close before 1am on Saturday after triple zero calls about a street disturbance "involving a number of people".
They said the 17-year-old Mooroobool boy died at Cairns Hospital after being taken there in a private vehicle prior to the police's arrival at Lychee Close.
A second 17-year-old - also from Mooroobool - arrived at the hospital with non-life-threatening injuries.
Police said both boys had sustained stab wounds, with preliminary investigations indicating they had attended a birthday party prior to the street disturbance.
Police are appealing for information.
Three males - aged 17, 18 and 28 - have been arrested for obstructing police as part of investigations into the disturbance.
The 18-year-old and the 28-year-old, both from Manoora, are due to appear in a Cairns court on January 18.Â
The 18-year-old was also charged with serious assault of a police officer and the 28-year-old was also charged with contravening a direction.
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