A 43-year-old woman is due to appear in court later this morning, charged in connection with the death of two year old Hassan Khan.
The two-year-old toddler was found with stab wounds in his Dublin home on Thursday.
The woman was charged late last night after her period of detention was extended twice by detectives in Dun Laoghaire Garda Station.
She was arrested on Thursday, after the body of Hassan was discovered by gardaí at an apartment at Ridge Hall in Ballybrack.
A post mortem has been carried out, the details of which have not yet been revealed, but it is understood he suffered stab wounds.
The level of state supports for the family is now likely to be investigated as the toddler was the subject of a Child Rescue Ireland alert just two months ago.
It was cancelled within an hour when he was found with his father, but it is also unclear what level of follow-up supports that were provided or considered after Hassan was returned.