Montreal police say a "personal conflict" was at the heart of a massive brawl that ended in the stabbing death of three young people, including a 15-year-old boy.

Commander Jean-Sébastien Caron says the fight involved 15 or 16 people and was unrelated to organized crime.

Police were called at around 7 p.m. Tuesday to an alley in the city's Plateau-Mont-Royal district where officers found three injured people, aged fifteen, twenty-three and twenty-five.

All three had been cut with a sharp object and died later in hospital.

Caron did not say whether the people involved had criminal records, but he said they knew each other.

Police are searching for at least two suspects, but have not yet made any arrests.

The deaths are the city's 14th, 15th and 16th homicides of 2024.

There have been seven homicides in the past 10 days in Montreal.

The Canadian Press