A vehicle exploded on the Rainbow Bridge linking Canada with the United States at Niagara Falls, prompting authorities to close that border crossing and the three others between western New York and southern Ontario, officials said.   The FBI Joint Terrorism Task Force was mobilized to investigate the incident, according to New York Governor Kathy Hochul. Two people in the vehicle were killed in the explosion and one border patrol official was injured, according to several media reports that cited unnamed law enforcement sources.   Initial indications from the U.S. Customs and Border Protection agency were that incident was caused by a reckless driver whose actions resulted in a crash and fire, two sources familiar with the matter told Reuters.   A preliminary investigation has found no indication of a terrorist attack in an explosion on the Rainbow Bridge linking Canada with the US at Niagara Falls, New York Governor Kathy Hochul said.   🔗 Read more at our link in bio.   #Reuters #vi...