An Illinois woman faces upgraded charges after the toddler police say she physically abused earlier this month died from his injuries.

According to the Chicago Tribune, 21-year-old Alexandra Hoyle was arrested Saturday on suspicion of aggravated battery to a child.

The 2-year-old victim had reportedly been admitted to an area hospital the previous day with serious brain trauma.

Khalil Body later succumbed to his injuries and a medical examiner ruled his death a homicide caused by blunt force during child abuse.

During the police investigation that followed, Hoyle emerged as a prime suspect. She had reportedly been dating the victim’s father.

Investigators believe she slammed the boy’s head into the floor of his DeKalb County home.

Hoyle was released on $100,000 bond earlier this week in connection with the initial charges against her.

The Chicago Sun-Times reported Body died Wednesday afternoon at Lurie Children’s Hospital.

Following the victim’s death, authorities obtained a warrant for Hoyle’s arrest on two murder counts.

As of the latest reports available, she remained in police custody with bond set at $750,000.

While Hoyle had not had any prior contact with social workers, reports indicate two previous allegations of neglect involving Body — one against his father and another against both biological parents — were both deemed unfounded.

DeKalb Police Chief Gene Lowery expressed his condolences for the young victim’s loved ones.

“The tragic loss of a two year old child at the hands of this offender is unthinkable,” he said. “On behalf of the DeKalb Police Department we offer our sincere condolences, and our thoughts and prayers are with the victim and those that survive him.”

[Featured image: Alexandra Hoyle/DeKalb Police Department]