Construction Accident at Lake St and Canal St; 4 Injured, Transported by Chicago Fire Department Paramedics • MON DEC 29, 2014 9:42 AM CT

BUILDING COLLAPSE (CONSTRUCTION ACCIDENT) AT LAKE ST AND CANAL ST, CHICAGO -- 4 INJURED (CHICAGO FIRE MEDIA PHOTO) pic.twitter.com/ZyCofKPxqH

— ChicagoFireMap (@ChicagoFireMap) December 29, 2014

At the building collapse, watching from above. Lake / Canal pic.twitter.com/14zs1IwChH
— Peter Nickeas (@PeterNickeas) December 29, 2014

via @mitchdudek at the scene of a construction accident/building collapse at Lake and Canal. Details developing pic.twitter.com/87pGB9qf4i
— Craig Newman (@craignewman) December 29, 2014

MT @lorirackl: construction site next to me. Appears that worker(s) might be trapped. pic.twitter.com/4uBStS1Ths
— Craig Newman (@craignewman) December 29, 2014

Chicago Sun-Time Video of construction accident scene at 444 West Lake Street, Chicago.

At least 3 ambulances on scene. Lake & Canal for possible building collapse, three workers trapped @WGNNews pic.twitter.com/dxqdP0PAWs

— Maggie Carlo (@MaggieCarlo) December 29, 2014

Construction site collapse in Chicago west loop. View from our building pic.twitter.com/8la6U9v4IG

— Reuven Fridmar (@ReuvenFridmar) December 29, 2014

Chicago: 4 construction workers injured during steel beam collapse in West Loop. #osha #Squad1 #stokesbasket pic.twitter.com/Uj7RmWW2nZ

— Captured News (@CapturedNews) December 29, 2014

Four Hurt In Construction Accident - http://t.co/n22tpb8zi5 pic.twitter.com/ybOtYrlZam

— CBS Chicago (@cbschicago) December 29, 2014