The man accused of killing 11 people when he allegedly plowed his vehicle into a crowded Vancouver, British Columbia, festival had been receiving mental health treatment, but was on an "extended leave" at the time of the attack.

Vancouver police ruled out terrorism as a motivator for the incident at the Lapu Lapu Day Festival, saying the suspect has a history of mental health issues.

At least 11 people were killed and dozens were injured when a man drove into a crowd at a Filipino heritage festival in Vancouver on Saturday.