The department remained open and operational throughout the day.
Jean-François Lalonde, 43, was to appear in court Friday to face charges of arson endangering life, arson to property, possessing incendiary materials and breach of probation, the Ottawa Police Service said in a news release.
Police said hospital security had already taken a suspect into custody by the time emergency services responded to the fire at 6:34 a.m. The fire was extinguished by the hospital’s sprinkler system.
The Ottawa Hospital declared a “Code Red” at 6:30 a.m. because of the fire. About 30 patients had to be moved to other areas of the facility, hospital spokesperson Rebecca Abelson said.
A spokesperson for Ottawa Fire Services said a sprinkler head was activated when they arrived and firefighters helped clean up the water.
No staff or patient injuries were reported, Abelson said.