• Three people, including a police officer and a civilian, were killed in a Montreal shooting.
• The incident occurred in the Côte-des-Neiges neighborhood known for its Jewish community.
• Montreal Police Chief described the event as a "tragedy" and "nightmare."
• An emergency alert was issued, and a police operation is underway.

A shooting incident in Montreal on Monday claimed the lives of three individuals, including a local police officer and a civilian, as well as the suspected gunman, according to Al Jazeera, BBC, South China Morning Post, and CBS News.

The shooting erupted around 11:30 a.m. in the Côte-des-Neiges neighborhood, an area known for its significant Jewish population. Montreal Police Chief Fady Dagher stated that the male suspect had acted alone and was quickly neutralized during the incident, which involved crossfire with police officers, according to BBC and South China Morning Post.

The officer's death marks a significant event, being the first line-of-duty killing of a Montreal police officer in nearly 25 years. The injured officer has been hospitalized, and while her status is serious, she is not in imminent danger, reported CBS News and South China Morning Post.

The investigation is still unfolding, and authorities are yet to confirm whether the civilian victim was part of the nearby community predominantly comprising Jewish residents. Community leaders have called for vigilance as the police clarify the intentions and motives behind this rare act of gun violence in Canada, according to Al Jazeera and CBS News.