A Newberg pet store was damaged by fire Thursday morning.  Frank Douglas, Division Chief for Newberg fire, says the building housing "Critter Cabana" was filled with smoke when the first crews arrived, and they made an aggressive attack to knock down the flames.  Veterinarians and animal control officials rescued as many animals as possible.  Some of the animals died in the fire.  Crews are working through the building to remove animals.  The building does not have a sprinkler system.  No firefighters were injured.  Investigators are trying to learn how the fire started.