CAMBRIDGE, N.Y. -- Authorities are trying to figure out what started an early morning fire in Cambridge.

The fire broke out at 4 Division Street early Tuesday morning.

No one was injured, but two of the family's pets didn't make it out.

Crews say when they arrived, flames were shooting from the front of the house, and spread to the attic.

Authorities say no one was home at the time of the fire.

They say they do not believe the fire is suspicious, but the cause remains under investigation.