Toronto, Ontario - A four alarm fire at the huge Hydro One facility at 65 Kelfield Street, alongside Highway 401. A large transformer exploded into flames after overheating and the oil-cooled structure was soon fully involved. As west-end companies arrived, wind-whipped flames soon engulfed a second unit and a large column of black smoke rose into the air and over the adjacent highway. With the possibility of PCBs in the oil and electrical hazards everywhere, most of the attack was made using unmanned monitors. It took some time to isolate the power and set up the relays, and flames continued to roll some 30 to 50 feet above the burning transformers, threatening exposures. Using foam and master streams, TFS members managed to knock down the heavy fire in under three hours, but oil-soaked wood, much of it shielded behind metal coverings, continued to burn all night. Overhaul and fire watch lasted several days; the loss was in the millions.