SUNDERLAND, Ontario —A multi-vehicle collision on Highway 12 near Sunderland caused traffic disruptions Tuesday morning, prompting a temporary closure of lanes in both directions while police assessed the situation and emergency crews responded.
The collision involved three vehicles, according to local reporting. The affected stretch was between Brock Township 11th Line and Durham Road 12, where northbound and southbound traffic restrictions were reported during the morning commute.
The incident created difficulties for motorists travelling through the Brock Township area, with drivers advised to avoid the affected section and use alternative routes while the response continued. At the time of the report, authorities had not confirmed the total number of injured people, the cause of the collision or an exact reopening time.
Three Vehicles Involved in Highway 12 Collision
The Ontario Provincial Police (OPP) confirmed that three vehicles were involved in the Tuesday morning crash. Information reported during the initial response indicated that injuries were being assessed.
Investigators had not released a detailed account of how the vehicles collided. Until police complete their investigation, it would be premature to attribute the crash to speeding, distracted driving, road conditions or another specific factor.
Highway 12 is an important route for residents and commuters travelling through communities in Durham Region and surrounding areas. A collision that blocks multiple lanes can quickly create congestion, particularly during busy morning travel periods.
Motorists approaching the affected area were encouraged to follow police instructions, obey temporary traffic controls and avoid attempting to pass through closed sections of the highway.
Separate Fatal Crash Reported Over the Weekend
The Tuesday incident occurred just days after a separate fatal collision on Highway 12 in Brock Township, highlighting the importance of distinguishing between the two events.
On Sunday, October 25, police reported that a 23-year-old driver from Sunderland had died in a three-vehicle collision north of Brock Concession Road 10. Two other drivers were injured. One sustained minor injuries, while the third suffered serious, life-threatening injuries and was taken to a Toronto-area trauma centre.
The fatal collision led to a prolonged highway closure as investigators examined the scene. Police said the investigation was ongoing, and the cause of the crash had not been established in the initial reports.
The weekend fatality is a separate incident from Tuesday’s collision. There is no confirmed information indicating that the two crashes were connected.
Investigation and Traffic Safety
Police investigations into multi-vehicle collisions typically involve examining vehicle damage, road conditions, witness statements and any available dashcam footage. These steps help investigators reconstruct the events and determine whether any contributing factors can be established.
Anyone who witnessed the fatal Sunday collision or has relevant dashcam footage has been asked to contact Whitby OPP.
Drivers travelling on Highway 12 are reminded to maintain a safe following distance, adjust their speed to road and weather conditions, and remain alert to sudden changes in traffic.
Latest Highway 12 Updates
As of the available reporting, the Tuesday collision had caused significant traffic disruption, but a confirmed reopening time was not included in the report. Motorists should check Ontario 511 for current lane restrictions and traffic conditions before setting out.
The latest information should be treated as preliminary until police or transportation officials release further updates. No additional fatalities or confirmed injury totals should be attributed to Tuesday’s crash without official confirmation.