NORTH MIAMI, Fla. -

A 21-year-old South Florida woman was charged with aggravated child abuse after police say she confessed Tuesday night to fatally torturing her 3-year-old son.

Fafane Caze was being held Wednesday at a Miami-Dade County jail on $50,000 bond. Police say more charges are expected, pending an autopsy.

Authorities believe Caze's son, Ghanson Debrosse, was dead for hours before he was taken to a hospital early Tuesday.

Fafane Caze "She confessed to everything involved with the abuse of the child," North Miami Police Maj. Neal Cuevas said.

Investigators say he had trauma "on nearly every square inch of his body."

Doctors said the child probably died two to three hours before they saw him. They also said his injuries were both old and new, but how those injuries occurred is still unclear.

Caze was taken to the police station for questioning, where she told detectives the "abuse occurred during a recent trip to Haiti." Authorities are checking with Haiti's national police to verify Caze's claim.

Police said Caze will be charged with aggravated child abuse and torture, and a murder charge is also pending.

"Just listening to the investigators and listening to the mother's explanation almost brought me to tears, just listening to some of the things that the child had suffered," said Cuevas.

The agency had contact with the family in 2010, and the case is being reviewed, according to a statement from DCF officials.
    
"My heart is breaking for this child," said DCF Interim Secretary Esther Jacobo. "Now we must focus our complete attention to protecting Ghanson's siblings and working with law enforcement to see that those responsible for his death are held accountable."