But the man in the truck then took off toward downtown Edmonton, according to the police account.
In 2014, Canada was stunned by two deadly attacks that police said were the work of homegrown radicals and led to tougher new anti-terrorism measures.
The Edmonton Police Service said in a statement it believed the suspect acted alone, although the investigation is in its early stages.
Trudeau said the Royal Canadian Mounted Police and the country's Integrated National Enforcement Team had joined the Edmonton police in its investigation.
Four pedestrians were taken to the hospital after being struck.
"It's not critical", Mr Knecht said of the officer's injuries, adding he did not know the extent of the pedestrian injuries.
Harry Kane nets two more goals Spurs beat Huddersfield 4-0
After a standout UCL performance, the FC panel look at if Harry Kane is worthy of an elite club, or if he still needs to grow. Kane may have been denied his seventh hat-trick of 2017, but the 24-year-old finds himself in incredible form right now.
Police say an ISIS flag was later found in the suspect's auto.
Knecht said the officer was standing behind a barricade when a Chevrolet Malibu crashed into it and hit the officer.
The truck driver then immediately fled the scene, but police officers pursued it as the driver deliberately attempted to hit pedestrians.
Two hours into the manhunt for the suspect, authorities stopped a large rental U-haul moving truck.
The UHaul was chased by a flurry of Police vehicles in a high speed chase.
Prime Minister Justin Trudeau has released a statement saying he is deeply concerned and outraged by the tragedy. The auto and knife attack on a police officer outside a football game and a high-speed chase of a moving van that left four people injured appear to be the work of a single suspected terrorist, Canadian authorities said Sunday.
Canada taps Netflix amid review of TV, arts policy in online era
Of the $400 million, for instance, $25 million will be specifically allotted for French-language content, according to Variety . The streaming company will also work with Canadian creators to produce content in both English and French.
- At about 8:15 p.m. MT an Edmonton police officer was working traffic control during an Edmonton Eskimos football game.
"To the best of our knowledge, this was a lone wolf attack", he said as he urged calm.
'It is believed at this time that these two incidents are related, ' he said.
The van driver was arrested after a police chase.
The police got the flag of the Islamic State from inside the van. He got out of the auto and stabbed the police officer using knife.
"The police cars just kept coming, they just kept coming", said Jaylene Ellard, who was out with a friend when the scene unfolded on the bar and pub-filled avenue on a crisp early fall evening.
NK official handling USA affairs begins Russian Federation visit
The new UNSC resolution was supported by Moscow and also by Beijing, the North's largest communist ally. Kim responded that Trump was "mentally deranged" and a "dotard" who would "pay dearly" for his threats.
In August 2016, Canadian police raided an Ontario home and killed a man whom they said was a supporter of Islamic State.
- Trump to NFL: Ban kneeling during national anthem
- Air France flight makes emergency landing in Canada after engine explodes
- Chelsea boss Antonio Conte wants a repeat performance from Eden Hazard
- Manchester United talking points after big win over Crystal Palace
- Super Nintendo mini-console is your new must-have obsession
- Aaron Jones delivers in relief effort in Week 4
- Kim Kardashian tells Trump to 'step up' on Puerto Rico
- Eagles-Chargers 5 matchups to watch
- Militants attack Kabul airport during Mattis visit, USA strike hits civilians
- Let's Make a Deal game show host Monty Hall dies at 96