Fire & EMS responded at 6:33 PM for the house fire, reported in the 800 block of 51^st Street, Northeast. 

First arriving units found heavy fire showing from side A of a two-story brick duplex.  An aggressive interior attack found fire on both floors and in the walls.  The fire was stopped with serious damage to the house of origin with some extension to the adjoining home. 

No one was home at the time of the fire, but firefighters were able to rescue a small kitten from the exposure building.  The cause and damage estimate are still being determined.