A British man shot dead during an armed robbery in Buenos Aires is understood to be Matthew Gibbard.
Mr Gibbard, 50, was a businessman from Northamptonshire.
During the robbery outside a luxury hotel in the Argentinian capital, a second British man – his 28-year-old stepson – was injured after also being shot.
The tourists were targeted by two men on a motorbike on Saturday morning in an attack caught on CCTV.
Officials said the holidaymakers were shot in a struggle as they attempted to stop the robbers stealing their belongings.
Both were taken to hospital after the attack near the entrance to the Faena Art Hotel in the Puerto Madero district.
Mr Gibbard had been shot in the chest and later died, while his stepson suffered a thigh injury.
Police believe the motorbike robbers were supported by accomplices in a vehicle and are looking into whether the victims were followed to the hotel from the airport, according to local media reports.
Officers have launched an investigation to find the attackers who fled the scene.
In a statement, the hotel said: “Faena Hotel Buenos Aires is deeply saddened by the incident which took place in the vicinity of the hotel.
“We express our deepest condolences to the families and friends of the victims. Faena Hotel Buenos Aires is working with the authorities and providing our full support.”
A Foreign Office spokeswoman said: “We are supporting the family of two British men following an incident in Buenos Aires, and are in contact with the local authorities there.”
More than 111,000 British nationals visited Argentina in 2018, according to the Foreign Office, which said most visits are “trouble-free”.
But tourists are warned to be alert to street crime, including armed robberies, and advised to hand over cash and valuables without resistance.
Travel safety expert Lloyd Figgins told Sky News: “Crime rates in Argentina are actually rising. Where the murder rate has actually dropped over the last 12 months, 300 more violent crimes have occurred in Argentina in just one year.
“And what we’re seeing is that criminals are actually targeting specific things, particularly passports, money and documents that are going to be of value to them.”
He added: “It is concerning because criminals are becoming a lot more organised.
“And we’re starting to see they are having insiders working for airlines, where they are actually getting the manifest of a particular flight in order they can see who the business class travellers are, where they might be staying, and then targeting their vehicle from the moment they leave the airport, and knowing exactly which hotel they are going to.
“That in itself creates a choke point that makes it very easy for the criminals to target people.”