Authorities in Blair County say a fire destroyed an Altoona home this morning. 911 officials say crews were dispatched to the home, located along the 1500 block of 5th Street, around 8 a.m. Fire crews say there was “heavy fire” on multiple floors of the residence. No injuries were reported in the blaze and the cause of the fire is still under investigation. Officials say an excavator was being brought in to tear down the remainder of the home.