A car exploded on a bridge leading to Niagraa Falls on the US-Canada border Wednesday. Fox News reported that sources said the incident was an attempted terrorist attack and that the vehicle contained explosives. Two people inside the vehicle were reportedly killed, and the FBI is investigating the incident.

The suspected terrorist attack occurred the day before Thanksgiving, one of the busiest travel days in the United States.

The Rainbow Bridge was closed due to the explosion, as were all border crossings in the area, according to local media. The vehicle that exploded was headed into the United States from Canada and blew up at one of the bridge's inspection booths.

Witnesses said that the vehicle was traveling extremely fast at the time of the incident. One witness told WGRZ-TV that the vehicle was going at over 100 miles per hour.

Photographs posted to social media from the scene show extensive damage caused by the blast as well as a fire that broke out under the bridge.

New York State Governor Kathy Hochul wrote on X: "I’ve been briefed on the incident on the Rainbow Bridge in Niagara Falls and we are closely monitoring the situation. State agencies are on site and ready to assist."

“At my direction, the New York State Police is actively working with the FBI Joint Terrorism Task Force to monitor all points of entry to New York,” she said. “I am traveling to Buffalo to meet with law enforcement and emergency responders and will update New Yorkers when more information becomes available.