The Argentinean government has claimed Prince William's deployment to the Falklands is a distraction from Britain's "internal problems".
In an interview with the country's La Red radio station, Vice-president Amado Boudou said that the move was a case of "bravado" to mask high unemployment and the prospect of Scottish independence.
Mr Boudou said: "In Europe they are trying to cover up problems such as unemployment and social dissatisfaction by seeking issues which have high media impact.
"They are seeking to cover up daily reality with a matter which is very far away from London, such as the Malvinas [the Argentinean term for the disputed islands].
"It seems the population is having a bad time and they are trying to cover up that situation with this bravado."
Last month, Mr Boudou stood in for president Cristina Fernandez de Kirchner while she was treated for suspected thyroid cancer, the Press Association reported.
The vice-president was also asked about reports that Buenos Aires is putting pressure on a Chilean airline to stop weekly flights to the Falklands, which pass through Argentinean airspace.
He said: "There has been a very firm response from all the countries in our region.
"I repeat, I think this has to do with internal political questions which they (the UK) have to resolve, very complicated issues which range from high unemployment to the matter of Scottish separatism."
Commenting on the reports about the weekly flights from Chile, David Cameron's official spokesman said today: "I'm not sure that anything has changed on this issue.
"Argentina has made threats in the past about cutting the weekly flight between the Falklands and South America, and the Argentine president made comments about that at the UN last September, so this is not new.
"Clearly, we hope that that flight will not be cut, but there are also RAF services from London to the Falklands and these will continue."