Nottawasaga OPP are investigating a fatal, single-vehicle crash in Adjala-Tosorontio over the weekend.
On Sunday at 3:56 p.m., police and emergency services responded to the collision on 11th Line and Adjala Tecumseth Townline.
Officers say a passenger vehicle towing a trailer struck a hydro pole.
"A 43-year-old female passenger from Ramore was pronounced deceased on the scene," OPP said in a release on Tuesday.
"The driver and four other passengers, who are minors, were transported to the local hospital with minor injuries."
11th Line was closed for the evening while OPP investigated.
Anyone who may have witnessed or has video footage of the collision is asked to contact Nottawasaga OPP at 1-888-310-1122.