A 16-year-old in western Canada severely wounded his mother and fatally shot two police officers before turning the gun on himself, CBS News reported.

In the early hours of Thursday morning, residents of an apartment complex notified police about a loud domestic dispute that was occurring their building in Edmonton, Alberta. At around 12:47 A.M. officers Travis Jordan and Brett Ryan arrived to the scene. After the Edmonton Police Services were unable to contact them, additional officers were sent.

Inside the apartment, police discovered the bodies of fallen officers Jordan and Ryan, the body of the suspected shooter with self-inflicted gunshot wounds, and a woman with life-threatening injuries. The woman, who was later identified as the suspect’s mother, was taken to a nearby hospital where she remains critical condition but is expected to recover.

Edmonton’s police chief, Dale McFee, released a statement about the deaths of officers Jordan and Ryan, and announced that their names will be added to a monument for fallen police officers on the grounds of the legislature. He noted that Jordan, who had been with the Edmonton force for 8 1/2 years, and Ryan, who had been an officer for 5 1/2 years, were the first police killings within the city since 2015.

“This is an extremely tragic day for the Edmonton Police Service and our city,” McFee said. “These officers gave their lives while trying to protect our community. They will never be forgotten.”