A man who allegedly stabbed a woman and held a child inside a Scarborough home was fatally shot by Toronto police officers following an interaction on Saturday afternoon.

The Special Investigations Unit (SIU) has invoked its mandate and is looking into the circumstances surrounding the incident that occurred near Midland Avenue and Kingston Road.

According to Toronto police, officers were initially called to that area around 2:30 p.m. for reports that a woman had been stabbed.

The SIU said a 42-year-old man suspected of stabbing the woman subsequently took hold of a child and went inside a residence.

Scarborough shooting

When police finally arrived, they learned that the suspect was still inside the home with the child.

Toronto police Chief James Ramer said officers shortly became involved in an interaction with the man. According to the SIU, three officers shot the man.

He was taken to the hospital, where he was pronounced dead. The SIU said a post-mortem exam is scheduled for Sunday.

Ramer said the woman who got stabbed suffered serious injuries. She was transported to the hospital and is now in stable condition.

Meanwhile, the child was not physically injured in the incident. It was not immediately clear what's the relationship of the suspect to the victim and the child.

Scarborough shooting

Ramer would not disclose further details about what occurred, noting that the province's police watchdog is now involved.

"The SIU is going to investigate the incident, the interaction between the individual and the police. And then we will, at the same time, simultaneously investigate the original incident and the stabbing of the female," he said.

"It's a tragic incident when officers are having to deal with these situations and deal with individuals under any circumstances. And all deaths are tragic and it has a huge impact on the officers that are involved as well."

The SIU, which is called to investigate the conduct of police that may have resulted in death, serious injury or sexual assault, has assigned three investigators and three forensic investigators to the case, which involves three subject officers and four witness officers.

Scarborough shooting

Jan Higgins, a long-time resident in the neighbourhood, was shocked and saddened about the incident.

She said it is not something she has seen happen in the area before.

Another woman who lives on the street called the incident "traumatic."

"It's incredibly scary that something like this is actually happening in the neighbourhood. It's a quiet neighbourhood," she said. "I'm really shocked that this type of violence is occurring in this day and age."