From the NY Post:
Four workers were injured when a building collapsed this morning in the Brooklyn's Williamsburg neighborhood, reports Channel 7/WABC.com.
The three-story building at 34 Conselyea Street was apparently under construction when it crumbled on Monday afternoon.
The fire department says four workers were pulled from the rubble, with one, a man in his 40s, rushed to Bellevue Hospital in critical condition.
Two others were taken to Woodhull Hospital in stable condition and the fourth remained at the scene, refusing medical attention.
Photo from Gothamist, which has more info.
There's also a partial collapse at 212 Ralph Avenue as per Brownstoner.