Just after 4:30 a.m., Pittsburgh Bureau of Fire was dispatched to a two-alarm residential structure fire in the 1500 block of Beechview Avenue.
Firefighters extricated two people from the building; one person from a stairwell and a second from a room on the second floor.
EMS transported both victims, including one in critical. The second person was in stable condition.
The building sustained heavy damage from the fire.
FIU also responded to the scene and the cause is under investigation.