PHOTOS: FBI investigating vehicle explosion at U.S., Canadian border

Border Crossing Explosion Law enforcement personnel block off the entrance to the Rainbow Bridge, Wednesday, Nov. 22, 2023, in Niagara Falls, N.Y. The border crossing between the U.S. and Canada has been closed after a vehicle exploded at a checkpoint on a bridge near Niagara Falls. The FBI's field office in Buffalo said in a statement that it was investigating the explosion on the Rainbow Bridge, which connects the two countries across the Niagara River. (Derek Gee/The Buffalo News via AP) (Derek Gee/AP)