Article content Sault Ste. Marie Fire Services had to cut out some of the people involved in the collision that happened at about 9:30 a.m. We apologize, but this video has failed to load. Try refreshing your browser. Four-vehicle crash on Sault's Great Northern injures 10 Back to video The crash, in the 2600 block of Great Northern between Sixth Line and Macintyre Road, closed the road to traffic until about 4 p.m. Police spokesperson Lincoln Louttit called the collision probe “complicated” because of the number of vehicles involved. Two traffic service officers are investigating. “There’s a lot of logistical information that officers have to digest and go through before they’re able to determine exactly what caused the collision,” he said. “The scene (Wednesday) morning was quite hectic, a lot of people involved.”