Toronto Fire Services responded to a 4th alarm fire in a row of attached houses this morning. The fire at 65 Major Street (just west of downtown) was called in at 8:06AM. First arriving crews were confronted with heavy smoke conditions, and found fire on the second and third floor of the house. The homes are about 100 years old and they had a common attic, so fire spread quickly to the all 4 houses in the row, via the attic. Additionally, there had been woodframe additions to the houses over the years, and fire spread into them. A 4th alarm was struck, bringing about 25 vehicles and 90 firefighters to the scene. The fire was under control in about 2 hours, 1 fire fighter received an electric shock and was taken to hospital with non-life threatening injuries. Occupants of the houses got out safely, thanks to timely warning by smoke detectors. Damage is estimated at $750,000 and the cause is under investigation.