A fire broke out near a homeless encampment at the side of the Gardiner Expressway on Monday afternoon, forcing the closure of the westbound ramp to Jameson Avenue.
A Toronto police sergeant said he could hear explosions from several kilometres away, and propane tanks were visible among the charred debris.
Video from the scene shows fire crews extinguishing the blaze, leaving an area of blackened grass.
No injuries were reported.
The off-ramp has since reopened.
This is the second fire in as many days at a homeless encampment.
On Sunday, four injuries were reported at what fire officials called a “homeless encampment” in Corktown Commons Park near Lakeshore Boulevard and the Don Valley Parkway. At that scene, propane containers were also found. The cause of the fire remains under investigation.