NEW CANAAN — The cause of a fire that severely damaged a Dan’s Highway home Saturday afternoon had still not been determined by Sunday.

“No it’s still under investigation,” said New Canaan Fire Chief Jack Hennessey.

He said the Connecticut State Police fire marshal and the New Canaan fire marshal are both investigating the blaze, but haven’t given him any update.

No one was injured when the fire started in the three-story house, and all inhabitants got out safely. However, the building’s second and third floors were heavily damaged, making it uninhabitable.

On Sunday, Hennessey said the investigation will likely look at the cause and origin of the fire. He said fire officials believe the fire started on the Eastern side of the house.

Initially, firefighters went up into the attic, Hennessey said, but because there was no hydrant, crews ran out of water and fire chiefs had them pulled out twice. Eventually, Hennessey said, the attempt to fight the fire became an “exterior attack.”

The home’s wooden roof and extreme wind also conspired to make battling the blaze more difficult, Hennessey said.