Quebec provincial police are investigating the deaths of three people in Notre-Dame-des-Prairies, in the Lanaudière region.
Among the dead were a father and his two children, according to Sûreté du Québec spokeswoman Catherine Bernard.
Ianik Lamontagne, 46, and Antoine and Tristan, three, were identified as the deceased, according to Radio-Canada sources.
Bernard says that the police are investigating it as a double homicide and suicide.
Police say they received a 911 call around 2 p.m. Saturday. Officers were dispatched to a residence on Patrick Street where they found three bodies.
A perimeter was established and a command post set up. Over the next few hours, the police will collect witness testimony and analyze the scene.
Notre-Dame-des-Prairies Mayor Suzanne Dauphin said the deaths are reminders that life is fragile and precious and that mental health issues can affect everyone, regardless of age or situation.
“As a society, we must also commit to preventing such events in the future,” he said in a statement on Sunday. “This means intensifying our efforts to recognize the warning signs of heartbreak and despair among our loved ones.”