‘A search of the scene revealed no explosive materials,’ the FBI said.

NIAGARA FALLS, Ont.—Four Canada-U.S. border crossings were closed temporarily on Nov. 22 after a vehicle explosion at the U.S. side of the Rainbow Bridge checkpoint at Niagara Falls. The incident left two people dead.

New York Gov. Kathy Hochul said there was no evidence that the incident was terrorism-related.

“Based on what we know at this moment, there is no sign of terrorist activity in this crash,” she said at a press conference on the afternoon of Nov. 22. Hours later, FBI confirmed her statement, saying that the matter has now been turned over to the local police as a traffic investigation.