Uncle says he tried to save 7 from Ky. house fire

This Sunday, March 10, 2013 photo shows the charred remains of a home after a fire erupted, Saturday, March 9, 2013 in Gray, Ky, killing two adults and five children inside.

Investigators are working to determine what caused a fire that killed two adults and five children in rural Kentucky.

State police say they expect to release more information about the blaze Monday. So far, officials have not identified those killed in the Saturday morning fire. But relatives say the adults were a man and his pregnant fiancee.

They say three of the children belonged to the woman, while two other children were from another family.

Gino Cima, the uncle of the man who died, says he raced to the home as soon as he heard of the fire to try and rescue the people inside. But he says everyone had died by the time he arrived.