Police have this afternoon named the 15-month-old girl who was fatally injured in an alleged assault recently as Millie Martin, from Glebe Park in Enniskillen, Co Fermanagh.
After an application to Omagh court, officers from the Police Service of Northern Ireland’s (PSNI) serious crime unit were granted an extra 36 hours to question the man a 30-year-old man about the death.
The girl died in intensive care at the Royal Victoria Hospital in Belfast after being hurt.
A post mortem examination is to be carried out today to determine the cause of death.
A house at Glebe Park in the Chanterhill area of Enniskillen remains sealed off for technical examination by forensic experts.
The child was first admitted to the Erne Hospital in Enniskillen last night before being transferred to Belfast.
Western Health Trust staff are assisting police.
Local SDLP Assembly member Tommy Gallagher said: “My thoughts go out to the family. There is a great sense of shock and anger about this. The whole thing is playing out very badly.”
Glebe Park is a residential area of the lakeside town on the road to Tempo.