Toronto Fire says one person has been rescued after a fire in the downtown core on Thursday.
Firefighters responded to reports of a fire on Front Street East just before noon.
Fire officials said the second floor of a unit was on fire and there was heavy smoke in the hallway.
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One occupant was rescued in the unit and handed to paramedics, a Toronto Fire spokesperson said.
Toronto Paramedics said they transported a woman in her 30s to hospital in critical condition.
No other injuries were reported. The fire is now under control and the building is being ventilated, officials said.