When Lionel Messi, already a regular starter for the mighty Barcelona, made his international bow in 2005 as an 18-year-old for a powerful Argentina...

Costa Rica began testing a similar treatment in humans last week, with the first results expected in a few weeks, according to authorities.

South America's third biggest economy is in virtual default, according to Argentina's President Alberto Fernandez, who claims it is suffering a similar crisis to the worst of its history in 2001.

Argentina's ex-president Cristina Kirchner was charged with corruption on Monday as a judge asked that her legislative immunity be lifted so she can be detained.

Costa Rican Alejandro Jiménez, known as 'El Palidejo,' had hired a group of thugs to murder a Nicaraguan businessman traveling with Cabral, but Cabral was killed instead.

Argentine President Mauricio Macri's opponents attacked him Tuesday over his involvement in two offshore companies after his name appeared in the so-called Panama Papers leaks.

The United States and Argentina sealed a major trade deal on the first day of President Barack Obama's visit Wednesday, bolstering the efforts of his counterpart to end a decade-and-a-half of international financial isolation.

Argentina's coast guard sank a Chinese fishing boat that attacked when authorities tried to stop it for illegal fishing in the South Atlantic, officials said Tuesday.

Argentina's new market-friendly president, Mauricio Macri, still needs to get approval for the deal in the National Congress, which is dominated by the opposition.

Argentina aims to borrow $15 billion when it returns to debt markets so it can pay off international creditors who have sued it in a U.S. court, the government said.