The FBI has ended its investigation of Wednesday’s fiery car wreck that killed two people at a border checkpoint in Niagara Falls after finding no evidence that it was a terror attack, The Associated Press reported on Thursday.

The FBI's decision late Wednesday came several hours after the vehicle raced through an intersection, hit a median and was launched through the air before slamming into a line of booths and exploding at the Rainbow Bridge in Niagara Falls.

Local police are now handling the case as a traffic investigation, according to AP.

"A search of the scene revealed no explosive materials, and no terrorism nexus was identified,” the FBI's Buffalo office said in a statement. “The matter has been turned over to the Niagara Falls Police Department as a traffic investigation.”

The two people who died were a husband and wife, according to a person briefed on the investigation who spoke to AP on condition of anonymity. The identities of those in the car have not yet been released.

The crash prompted the closure of the Rainbow Bridge and three other bridges connecting western New York and Ontario.

As of Thursday evening, traffic resumed across the Rainbow Bridge, according to CityNews Toronto.

New York Governor Kathy Hochul told a news conference on Wednesday that there is no sign that the car explosion at the Rainbow Bridge in Niagara Falls was terror-related.