Two of the dead were riding the bus and one was on the platform at Westboro station, a major stop on the city's busway, Mayor Jim Watson said.
Police chief Charles Bordeleau said "several people were trapped on the upper level" of the bus before being freed.
The Ottawa Police Service Collision Investigation Unit arrived to investigate the incident. He was in his apartment across the street from the station when he started hearing sirens just after 4 p.m. He wouldn't say why she was detained rather than submitting to questions voluntarily.
Kevin Hart Emphatically Says He Won’t Host the Oscars
You don't want to turn into what you're fighting against. "You want my arms?" If you feed this energy then it's going to grow. He also meant to discuss some previous viral moments at the awards show and how "you don't want to be a meme".
Fourteen of the injured are in critical condition, according to Miles Cassidy, the chief of Ottawa's paramedic services.
An obviously distressed woman was seen being wheeled away from the bus on a stretcher by paramedics. I know that the people of Ontario have them in their hearts tonight. I felt like vomiting a couple of times.
"Such devastating news. My thoughts and condolences are with the victims, their families and all those affected by this tragedy", wrote Environment Minister Catherine McKenna, who represents the area in Parliament. Pictures posted to social media show a large presence of first responders at the busy transit station, and substantial damage to the front end of the bus.
2019 iPhones’ big feature will be an extra camera lens
That led Apple to aggressively market the iPhone XR on its website for $449, about $300 less than its official sticker price. If Apple does go down this route, it wouldn't be the first smartphone manufacturer to do so.
In 2013, another Ottawa double-decker bus broke through a warning gate and collided with a Via Rail train in suburban Barrhaven, killing six people as the train sheared off the front of the vehicle.
Dollar falls for a third day on rate pause bets
The Bloomberg Dollar Spot Index dipped 0.2 percent.The euro bought $1.1415, up 0.2 percent.The pound rose 0.2 percent to $1.2749. The crude benchmark rose 54 cents on Monday to $57.61 a barrel, while US crude futures gained 53 cents to $48.49.
Led coalition: American withdrawal from Syria has begun
Turkey considers America's Kurdish allies of the YPG militia - who were vital in the ground war against ISIS - a terrorist group. Mr Trump initially signalled a rapid withdrawal from Syria and USA officials said they expected troops to be out with 30 days.
Cancer's death rate has been dropping for 25 years. Why?
However, in adults younger than age 55, new cases of colorectal cancer have increased nearly 2% per year since the mid-1990s. In children, leukemia accounts for the majority of cancer cases, making up 28% of all childhood cancers.