CHICAGO (CBS) — There was phrase of heightened safety airports throughout the nation Wednesday – together with O’Hare and Halfway worldwide airports in Chicago – after two folks have been killed in a car explosion on a U.S.-Canada border crossing.

The explosion occurred Wednesday afternoon at Rainbow Bridge, a U.S.-Canada border crossing close to Niagara Falls, in western New York upstate. Officers mentioned 4 U.S.-Canada border crossings within the area have been closed as investigators responded to the state of affairs. Three crossings later reopened, with Rainbow Bridge remaining closed.

Two folks died contained in the car that exploded. It’s not but identified why the Bentley exploded, however New York Gov. Kathy Hochul mentioned in a information convention Wednesday that at the moment “there is no such thing as a signal of terrorist involvement” within the “horrific” explosion.

FBI Buffalo on Wednesday night time mentioned it had concluded its investigation of the incident and located no explosive supplies or “terrorism nexus.” 

“The matter has been turned over to the Niagara Falls Police Division as a visitors investigation,” the FBI mentioned in an announcement. 

Hochul mentioned the car was “incinerated” by the crash, with nothing remaining intact however its engine. She added that items of the automobile have been scattered over 13 to 14 border safety cubicles. 

As CBS 2’s Jermont Terry reported, there have been no main delays or cancellations at O’Hare Wednesday afternoon and night, and there didn’t look like something out of the conventional by way of safety.

However with federal officers attempting to determine if the automobile blast in upstate New York was deliberate or not, safety consultants throughout the nation, and together with O’Hare and Halfway, is elevated.

If safety was beefed up, airport officers didn’t clarify how. However further parking enforcement staff have been seen shifting automobiles alongside exterior Terminal 1 at O’Hare late Wednesday afternoon.

We all know automobiles generally wait to choose up folks in arrivals at O’Hare. However in mild of the explosion, do not anticipate to go well with for lengthy if you happen to’re coming to the airport.

We’ve got additionally reached out to the FBI and the Chicago Division of Aviation for extra info.

Vacationers mentioned issues about safety weren’t what they wished to listen to earlier than heading to the airport.

“That is stunning. You do not anticipate to listen to that. I by no means would anticipate to stroll into the airport and listen to that proper now, in order that’s form of scary,” mentioned traveler Claud Thomas. “It does make you suppose twice about, you understand, popping out on the massive holidays like this – a bit scarier than regular.”

There had been conflicting early experiences about which course the automobile was touring, however Wednesday afternoon a senior U.S. regulation enforcement official informed CBS Information the automobile was coming from the U.S. aspect. The official mentioned it hit the customs station.

A brief clip of safety digital camera footage posted by U.S. Customs and Border Safety exhibits the automobile rushing and going airborne.

Hochul mentioned a border patrol officer who was within the customs station suffered minor injures and was taken to a hospital, handled and launched. 

Preliminary federal authorities assessments and regulation enforcement sources point out that the car was touring at a excessive charge of velocity when it hit a curb, main it to crash by means of a fence and a Customs and Border Safety inspection space, the place it caught hearth and exploded. Witnesses have informed authorities that the car launched into the air when it hit the fence after which exploded when it landed, a regulation enforcement supply tells CBS Information’ Pat Milton.

 “The automobile was coming flying again right here like over 100 miles an hour,” mentioned Mike Guenther, a Canadian resident visiting New York state. “We may hardly see him — he was going that fast.”

The bridge is lower than a mile from Niagara Falls. It’s a well-liked border crossing that caught these within the space without warning.

“It seemed like he hit the fence and the fireplace began, after which rapidly, he went up within the air – and it was a ball of fireplace, like 30 or 40 ft excessive,” mentioned Guenther. “By no means seen something prefer it.”

Federal authorities had to verify the explosion was not one thing extra nefarious – with the crash taking place on Thanksgiving eve. For a number of hours, all border crossings have been shut down.

“Initially, it was precautionary – after we decided that there was no further risk,” mentioned U.S. Customs and Border Safety Director of Operations Rose Brophy.

By late Wednesday night time, all crossings have been again open – apart from the the place the crash occurred.

“At the moment, there is no such thing as a indication of a terrorist assault,” Hochul mentioned. 

The motive force of the automobile was from western New York state. CBS affiliate WIVB-TV, Buffalo reported the couple was believed to be on their option to a live performance in Toronto when for causes unknown, their Bentley misplaced management.

A Border Patrol officer was injured, however officers mentioned he was largely protected by a safety sales space.

The precise explanation for the crash remained beneath investigation late Wednesday.