Hazmat teams have been called to an insulation van fire near Yonge Street and York Mills Avenue after the truck exploded and was engulfed in flames shortly after 10 a.m. Wednesday morning.

The cube van contained spray-foam insulation, which contains the toxic chemical isocyanate, resulting in sewers being blocked off in the surrounding area. The fire quickly engulfed the truck, parked at 44 Mason Boulevard, after the explosion and reached up to forty feet high, according to Captain David Eckerman, a Toronto Fire Services (TFS) communications officer.

The fire spread to overhead power lines, and severed several of them, resulting in downed live wires, according to Capt. Eckerman. As a result, there are some homes in the neighbourhood without power.

The Ministry of Environment has been notified of the incident, and fire crews on the scene are taking precautions with the toxic cargo. The cause of the fire is currently unknown and no injuries have been reported.

The Dupont ramp to northbound Interstate 69 is expected to reopen shortly after a non-hazardous petroleum-based material leaked from the trailer of a stalled tractor-trailer rig Sunday night, according to the Indiana State Police.

Troopers observed a liquid leaking from the trailer when they stopped to assist the driver of the tractor-trailer rig about 11:40 p.m., the report said. The ramp and northbound lanes at the 116 mile marker were closed for a short time while emergency crews identified and contained the spill, police said.

The Fort Wayne Fire Department's Hazardous Materials Team determined that the product was isocyanate, a non-hazardous product commonly used in the manufacture of foam. No injuries were reported, according to the fire department report, and the spill was contained in the area around the Star Transportation trailer.