On December 24, 2009 a scaffolding platform collapsed at a Toronto site run by Metron Construction Group, plunging five workers to the ground thirteen floors below. Aleksey Blumberg, 33, Vladimir Korostin, 40, Fayzullo Fazilov, 31, Aleksanders Bondarevs, 25, were all killed. Dilshod Marupov, 22, was seriously injured in the fall. 

The accident resulted in criminal charges against Metron, its President, Joel Swartz, and two supervisors, and prompted a panel review of Ontario's Workplace Health & Safety system.