Government officials briefed on the investigation so far say the suspect is not associated with any organized terrorist group and he does not represent a larger threat to national security.
The officials spoke on condition of anonymity because they were not authorized to speak publicly about the investigation.
All available resources mobilized: police
Meanwhile, Toronto police Deputy Chief Peter Yuen told reporters police have mobilized all available resources and that officers expect to be at the scene for a number of days to come.
"This is going to be a long investigation," Yuen said. There were numerous witnesses and surveillance cameras in the area, he said.
Police were called to the Yonge and Finch area for a report of a crash around 1:30 p.m. after a van mounted the curb and hit pedestrians on the sidewalk before being stopped by police.
"There were a lot of pedestrians out enjoying, a lot of witnesses out enjoying the sunny afternoon," Yuen said. Police are establishing two hotlines — one for victims and their families, and the other for witnesses to call in information related
to the incident.
Terror-threat level remains unchanged
A witness said separately that he had seen at least four bodies lying covered on the ground and that the people hit included a man who was crossing the street and others on the sidewalk.
Amir Bahmeyeh, a student, was in the area at the time of the attack.
"I saw the crazy van, like a rental van, hitting the people … one after one," he said. "I'm sure it was like a terrorist attack because he drove really fast, like crazy.