A double-decker bus and a passenger train collided in Ottawa, Ontario on Wednesday morning killing six people, including the driver of the bus and injuring at least 30 others.

Via Train (Creative Commons)

CNN reported that all of those who died in the accident were aboard the bus. According to the report, Ottawa Paramedic Service’s Anthony Di Monte told reporters that nearly a third of those injured remain in critical condition.

Much of the damage in the crash was to the front of the bus, which The Guardian reported was ripped off in the collision. There are no reports of injuries sustained by train passengers. The crash occurred at 8:48 a.m., in the peak of morning rush-hour traffic.

Charles Bordeleau, the city’s police chief, said as of late Wednesday morning that it is too early to determine the cause of the collision. This is the second major rail accident to occur this year in Canada. The previous accident, which happened on July 7, involved a train explosion in Lac-Megantic, Quebec that left at least five dead.

Related Neon Tommy stories: 

Canada Train Explosion Causes At Least Five Deaths

Driver 'Boasted Of His Speed' Before Spain Train Crash

Connecticut Commuter Train Derails Leaves 60 Injured