FBI agents rushed to respond Wednesday to a vehicle explosion that killed two and injured a third person on the Rainbow Bridge connecting Canada to Niagara Falls, N.Y., said two law enforcement officials, who spoke on the condition of anonymity to discuss a fast-moving investigation. Two people familiar with the investigation said there was no immediate evidence of any nexus to terrorism, but officials continue to investigate and their understanding could change. The explosion, which also injured a U.S. Customs and Border Protection officer, occurred on one of the United States’s heaviest travel days. One eyewitness told local news station WGRZ that the car was speeding and swerving as it approached the border from the U.S. side, but shortly after it passed another car, it suddenly went careening toward the U.S. security checkpoint.
