The FBI's field office in Buffalo said late Wednesday that it had concluded its investigation of the explosion on the Rainbow Bridge, which connects the two countries across the Niagara River.

CBP is working closely with @FBI, federal, state & local partners in response to a vehicle explosion at Rainbow Bridge which remains closed. Out of abundance of caution, CBP temporarily suspended ...

because it was so surreal to see how high in the air this vehicle went and then the crash and explosion and the fire," she said. A person watches after a vehicle exploded at the Rainbow Bridge ...