A British national was among at least 14 people killed in a car attack in New Orleans on New Year's Day, the Foreign Office has confirmed.
He was named by the Metropolitan Police as Edward Pettyfer, 31, of Chelsea, London.
In a statement, the Ministry of Foreign Affairs and Development said it supports the victim's family.
During the attack, a man in a pickup truck drove through the crowd on the city's Bourbon Street before being killed by police.
The New Orleans medical examiner gave Mr. Pettyfer's preliminary cause of death as “blunt force injuries” sustained on Bourbon Street, the PA reported.
In a statement, Mr Pettyfer's family said: “The whole family is devastated by the tragic news of Ed's death in New Orleans. He was a wonderful son, brother, grandson, nephew and friend to so many.
“We will all miss him terribly. Our thoughts are with the other families who have lost family members to this terrible attack. We ask that we be able to grieve Ed's loss as a family in private. Thank you.'
A famous American college football player, a young aspiring nurse and a mother of a four-year-old child is also among the victims.
Their names were released by families and relatives before US authorities completed autopsies.
The attack is believed to have been carried out by a 42-year-old Texas resident and US Army veteran.
After driving the truck through the crowd, the suspect allegedly got out and fired a weapon before being shot dead by police.
The FBI said an Islamic State flag was found in the vehicle.
Two improvised explosive devices were also found nearby, according to police.
The suspect, named Shamsud-Din Jabbar, believed to have acted alone in a “premeditated and evil act,” the FBI said.
At least 39 other people were injured in the attack, which took place in the city's French Quarter – a bustling nightlife area popular with locals and tourists – around 03:15 (09:15 GMT) on Wednesday.
Some of the injured have been released from the hospital, but more than a dozen remain, with some being treated in the intensive care unit.
Bourbon Street opened to the public Thursday morning ahead of the Sugar Bowl, a highly anticipated college football game between Notre Dame and the University of Georgia that draws thousands of visitors.