OAK HILL, Fla. -- The family dog saved a Volusia County family of four from their burning home in Oak Hill early Friday morning, but ended up dying in the fire. The fire started in a back room and, early Friday afternoon, investigators announced that it was a case of arson, but released no further details.

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SLIDESHOW: Images From Scene Of Destructive Fire

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Keisha, the family's dog, was in the back laundry room where the fire broke out early Friday and started banging on the door. The Wood family credits the dog with saving their lives.

Cassidy Wood, 20, woke up before 5:00am to the sound of her grandmother screaming after she was awoken by the sound of Keisha's banging.

"'Cassidy, get out, there's a fire! There's a fire!' I still had my eyes closed and had her out of her bed," she said.

Wood clutched her 6-month-old daughter Nevaeh, the name is heaven spelled backwards, and raced to a neighbor's for help.

As fire consumed the home, an alert neighbor realized baby Nevaeh, who was born underweight, would need her special formula and raced back into the house to get it.

"I turned around and looked behind me and all I seen was flames comin' outta the back room," she said.

Firefighters gave little Nevaeh oxygen, but did not take her to the hospital. When Oak Hill police arrived at 4:53am, they had to restrain Cassidy's father, Bobby Wood, who was trying to re-enter the home to save the family's 7-year-old black lab mix, Keisha.

"Lost a lot of our treasures, everything like that. But we're all healthy and everything, you know," Bobby said.

A Fire Marshal's detective examined the burned out home while Bobby Wood could only look on. His mother owned the house for more than 35 years. Now investigators are looking for more clues surrounding the suspected arson.

The dog the family credits with saving their lives perished in the fire. The family was planning to stay with friends and was receiving assistance from the Red Cross.