Emergency crews in Calgary responded to a call about a child in medical distress at an east-end home on Dec. 19.
Olive Rebekah Oluwafemi wasn't breathing and was in cardiac arrest. She was pronounced dead a short time later in hospital.
Staff Sgt. Colin Chisholm said Friday that there were initial reports that the girl had probably choked.
"We now know that was not the case. We know she did not die as a result of choking."
He said he couldn't reveal the cause of death, but said the girl suffered fatal injuries at the family home. The trauma was not the result of play or an accident, he said.
"We believe she died as a result of injuries inflicted upon her."
The girl's parents have been interviewed but are not being co-operative, said Chisholm.
Investigators have identified potential suspects, but he could not give more details.
He said there were no other children or family living in the home at the time.
Also on HuffPost