Police in Johor Baru have escalated investigations into the death of a 4-year-old to a murder inquiry, with the child's stepmother now facing charges in court.

The death, which initially may have been treated differently, was reclassified following a review of the circumstances. The victim sustained fatal blunt trauma injuries that led authorities to bring the murder charge.

The stepmother appeared before the court to face the serious allegations. Details surrounding the case remain under police investigation as authorities work to establish the full sequence of events that led to the young child's death.