Mayor of Buenos Aires Mauricio Macri, who is attempting to become the first right-wing politician to secure Argentina’s presidency in free elections, speaking on Sunday as the results of primary elections began to come in. Photograph: AFP/Telam/Alejandro Santa Cruz

Argentina is set for its most open presidential election in years after primaries held on Sunday showed the country’s right-wing opposition was unusua(...)

Cristina Kirchner and Aníbal Fernández at a rally in Buenos Aires last month. Kirchner compared those allegedly behind the accusations to the death squads of the military dictatorship. Photograph: Charly Diaz Azcue/CON

A bitter internal feud has broken out in Argentina’s ruling Peronist movement in advance of primary elections tomorrow after a prominent journalist ac(...)

A group of prosecutors and judiciary workers lead a march under heavy rain in Buenos Aires on Wednesday to pay tribute to  prosecutor Alberto Nisman a month after his  death in mysterious circumstances. Photograph: Agustin Marcarian/Reuters

Hundreds of thousands of Argentines took to the streets on Wednesday night to demand justice for prosecutor Alberto Nisman, who died in mysterious cir(...)

Cristina Fernandez de Kirchner, president of Argentina,   said the death of a prosecutor investigating the bombing of a Jewish community centre was not a suicide. Photographer: Diego Giudice/Bloomberg

Argentine president Cristina Fernández de Kirchner said the death of a prosecutor investigating the bombing of a Jewish community centre was not a sui(...)

Tabaré Vázquez waves a Uruguayan flag to celebrate his victory in the country’s presidential election. His victory follows those in recent weeks for fellow leftists Evo Morales in Bolivia and Dilma Rousseff in Brazil. Photograph: Matilde Campodonico/AP

Sunday’s comfortable victory for the ruling Broad Front movement in Uruguay was the latest confirmation of the enduring appeal of left-wing rule in So(...)

Sergio Massa, mayor of Buenos Aires’s Tigre, with his wife Malena and children  Milagros and Tomas,  after the resuts  in the Argentinian midterm election. Photograph: Enrique Marcarian/Reuters

Cristina Fernández de Kirchner suffered the worst electoral defeat of her presidency of Argentina yesterday when her ruling faction of the populist Pe(...)

People wade through a flooded street after a rainstorm in Buenos Aires. Record flash floods in Argentina have killed at least 54 people this week, officials have confirmed. Photograph: Enrique Marcarian/Reuters

Record flash floods in Argentina have killed at least 54 people this week, officials have confirmed. The floods have destroyed thousands of ho(...)