Police say a 6-year-old boy rescued a 2-year-old girl from a fire at a Long Island house where three adults later were found dead.

They say the two women and one man found in the burned Central Islip house had been shot but it's unclear if they died from their gunshot wounds or the fire, which has been ruled arson.

Homicide Detective Lt. Jack Fitzpatrick says firefighters were called to a blaze Tuesday morning. When rescuers arrived, they found the two-story house engulfed in flames.

The three adults were found in a back bedroom. Police say their bodies were so badly damaged it may take some time for their identities to be determined.

The boy and girl were found outside the home and are doing OK. They've been taken to a hospital.