KITCHENER -- Waterloo regional police say they are now treating the death of a two-year-old boy in Cambridge earlier this week as suspicious.

Officers were called to a home in the Winter Court area of the city for a medical call on Tuesday shortly after 12 p.m.

According to police, the boy was found inside the home and pronounced dead shortly after emergency services arrived to the scene.

Kimberly Armas, a resident in the area, said they heard fire and ambulance outside.

"Then forensic science showed up," Armas said. "We didn't find out basically what was going on until the next day."

Since that time, detectives from the Major Crime branch have been assisting the Coroner’s office with its investigation. The Major Crime branch is mandated to investigate all cases of death under five years of age.

"At that time it was a coroner's investigation where members of our Major Crime Unit were assisting them," Const. Andre Johnson said. "Since that time, the death has been deemed suspicious and we are continuing the investigation with members of our Major Crime Unit."

Police are continuing to investigate the circumstances surrounding the death and are warning that there will be an increased police presence in the Winter Court area during the day on Friday as officers continue to gather evidence.

"We are appealing for any witnesses or anyone with information to come forward by contacting members of our Major Crime Unit or by contacting Crime Stoppers," Johnson said.