Police in Niagara Region say there were no reported injuries after a massive commercial fire in Thorold, Ont., on Wednesday night.
Residents within a one-kilometre radius of Ormond Street and St. David Street East were asked by Thorold and St. Catharines firefighters to stay indoors and close their windows while the blaze raged on.
Police say the Ministry of the Environment was called out to the scene to do an assessment as large plumes of black smoke emanated from the commercial building.
Out of concern for public safety, a shelter-in-place order was put into effect by the ministry around 6 p.m. before being called off just before 8 p.m. as crews gained control of the fire.
Investigators with Niagara Regional Police say the blaze started at an auto body repair business on Ormond Street just after 2 p.m., and the cause has not yet been determined.