A massive explosion erupted atop a building in Canada's Toronto, sending thick black smoke into the sky and causing widespread panic. Local authorities report the site was under construction with possible explosive materials present. Eyewitnesses described debris falling onto nearby streets as firefighters rushed to contain the blaze. While no injuries have been reported, the incident comes amid rising global tensions linked to the ongoing Iran conflict, raising fears about potential connections. Roads remain closed and emergency teams continue to monitor the area.