Deputy foreign minister Eduardo Zuain has summoned the British Ambassador in Buenos Aires in a protest over a planned military exercise on the Falkland Islands next week.
A spokesman for the Embassy of Argentina in London said: "The Government of the United Kingdom will conduct military exercises on occupied Argentine territory between 14 and 27 April, including missile launchings from the Malvinas Islands.
"This action falls within a pattern already denounced by President Cristina Fernandez de Kirchner on 2 April, consisting of provocations and hostile acts towards Argentina from an extra-continental nuclear power."
More top news
A young grey seal found in a farmer's field on Monday is making progress say RSPCA staff. He's thought to have a head injury.
The UK economy, boosted by the inclusion of the sex and drugs industry in the calculations, is now the world's fifth largest, but only just.
Wet and windy weather will spread in from the west, turning to snow in places, especially later over the hills.