Firefighters are currently on the scene of a three-alarm fire at a highrise building in the Jane and Finch area.

The fire, at 15 Tobermory Dr., has been knocked down, but crews continue to vent the building to remove smoke which has spread to several floors.

Four patients have been transported to hospital for smoke inhalation, Toronto Paramedic Services said. Their injuries are not believed to be serious.

A number of people were also treated at the scene, paramedics said. 

The cause of the fire was not immediately known.