Oshawa Fire Services crews stopped a dangerous fire that broke out in two separate buildings at the corner of Simcoe Street South and Olive Avenue in Oshawa, Ontario, at approximately 1:30 a.m. on March 3, 2026. The incident caused significant damage and led to major road closures that impacted the area throughout the Tuesday morning commute.
One of the buildings involved in the fire was the Simcoe St. Diner, located at 329 Simcoe Street South. Firefighters worked through the early morning hours to bring the flames under control and keep the fire from spreading to other nearby properties.
While the buildings suffered extensive damage, officials reported that no fatalities occurred. Two people were taken to a local hospital to be checked by medical staff following the incident.
Durham Regional Police assisted at the scene by managing traffic and closing several roads near the intersection. An investigation into what caused the fire is currently underway.
