Two people have been injured in a building collapse in Sydney. WATCH THE VIDEO ABOVE: Wall collapse injures two at Sydney construction siteSign up to The Nightly's newsletters. Two people have been injured after a building collapsed in Ultimo, Sydney, on Monday morning. Credit: 7NEWSFootage from the scene captured paramedics loading two people into awaiting ambulances. Credit: 7NEWSFootage from the scene shows a ute almost completely crushed in bricks while the frame of the building has been mangled.