One person was taken to hospital with non-life-threatening injuries.
A change behind the bench is coming to the Toronto Maple Leafs.
OPP said the investigation was in relation to a wanted person, but offered no other details.
Vancouver battled back from a three-goal deficit to edge the Edmonton Oilers 5-4 in Game 1 of their second-round NHL playoff series.
Downtown traffic was slowed Wednesday night as a collision blocked a lane of traffic at Oxford and Glasgow.
Police said 34 victims, ranging in age from infancy to 17, were identified, while investigators protected another 30 children from exploitation.
The Transportation Safety Board released the finding into the April 21 incident on Wednesday.