Fire crews battled a 3-alarm blaze at an abandoned building in Braddock about 8 p.m. Saturday, Allegheny County dispatchers said.
Crews were called to 437 Library Street at about 6:30 p.m. for a large structure fire in a vacant building.
Heavy smoke was pouring from the building and several fire companies responded, according to dispatchers.
No reported injuries as of 8:30 p.m.
