Vehicle explodes, causing Rainbow Bridge between US, Canada to close

Sad thing happened as a vehicle exploded and caused the Rainbow Bridge between United States and Canada to close. Several people have been reported injured or dead, according to a report on ABC7NY. The vehicle was going from Canada into the United States. The report says:

Surveillance video showed the vehicle stopped at an initial security checkpoint, according to sources briefed on the investigation. The vehicle was then directed to a secondary security checkpoint, and at that point the vehicle sped up and crashed into the secondary screening location, sources said. What triggered the initial security stop was not immediately clear. It is also not immediately clear what caused the explosion. Investigators have found some sort of suitcase or briefcase on scene, sources told ABC News. They are treating it as a possible explosive device as a precaution and the bomb squad is handling the package.

A report by CBS News on the Rainbow Bridge explosion between United States and Canada said the following:

A senior U.S. official confirmed to CBS News a car traveling from Canada at a high rate of speed crashed into a pylon at the bridge crossing. The crash was followed by an explosion, but the U.S. official said it is not yet known why the car exploded.  

A senior administration official describes the incident to CBS News as "more than a freak accident, but we don't yet have details." Mike Guenther, a Canadian resident visiting New York, said he was walking nearby and saw the car speeding towards the border crossing. "And he was flying, over 100 miles an hour. There was a car in front of him, he swerved out, went in front of the car, hit the fence, went flying up into the air … and we just seen the fireball, and that's all we could see, there was just smoke everywhere," he said.