At least 3 dead in fiery crash involving 2 Calgary city buses, other vehicles

Fire shooting out the top of a Calgary City bus, powered by natural gas, bursting into flames with 13 people on board. People fleeing in nearby stores, including Maxwell Kulnison. I looked to my left, it was just the fire was just on the bus. And then we just kind of ran to the, to the, to the far, as far as possible from on the parking lot. Seeing damaged cars scattered in pretty well every direction. The bus is one of eight vehicles involved in a chain reaction crash. leading to the deaths of three people, ten others sent to hospital by ambulance. I've been a police officer for 36 years and I think this is probably the biggest scene that I've worked on in relation to the collision that we've got here. The bus was travelling along the road beside me here when it hit at least one vehicle, that vehicle colliding with other vehicles. The bus going on to hit a second bus that was stationary. The second bus got pushed across the street and caught on fire. all unfolding in front of a police station and fire department. We had a very quick response time. The crew was mobilized to a motor vehicle collision. Immediately after exiting the station, though, they realized it was also a fire. So they proceeded to attack the fire, call for more resources. The response not just immediate, but massive. Police say an officer was also injured trying to help. As she approached the bus, we believe that the fire spread and then the explosion took place. I'm not too sure of her injuries, but I believe they're minor at this stage. And passers-by in disbelief. I think in a second that fire will go very big. And for that, I'm just shocked. What triggered this incident, still not clear. With so many vehicles and people involved, piecing this investigation together is expected to be an arduous task. Shian Desjardins, CBC News, Calgary.