NIAGARA FALLS, N.Y. — The two people killed when their car crashed into a border checkpoint in Niagara Falls and exploded in a fiery wreck were identified Friday as a western New York husband and wife whose family owns a lumber business and several hardware stores in the Buffalo area.

The Niagara Falls Police Department named the couple as Kurt Villani and Monica Villani, both 53, of Grand Island, New York, a leafy Buffalo suburb close to the falls.

Online business records and the company website indicate the victims’ family owns Gui’s Lumber and seven Ace Hardware locations in western New York, his family operating the business since the mid- 1980s.

“We would like to extend our sincere gratitude to all that extended prayers, condolences and well wishes,” the families and the lumber company said in a joint statement released Friday by the Erie County Sheriff’s Office.

Authorities have not yet released details on what led to the couple’s crash Wednesday at the Rainbow Bridge, where their car raced through an intersection, hit a low median and was launched through the air before slamming into a row of security booths and bursting into flames.

The wreck prompted widespread concern on both sides of the border, as video and images of what appeared to be the aftermath of an explosion began to circulate online and officials closed the bridge and three other crossings in the area.

Authorities investigated for several hours before the FBI’s Buffalo office said it found no signs the incident was a terrorist attack and turned the case over to local police as a traffic investigation.

The Niagara Falls Police Department has said the investigation will take time to complete given the complexity of the deadly crash.

The agency issued a statement Friday that named the victims of the crash but contained no other details.