José Dirceu, who was detained  yesterday morning at his home in Brasília. Photograph: Nacho Doce/Reuters

Police in Brazil have arrested one of the founders of the ruling Workers’ Party, accusing him of being the mastermind behind the massive corruption s(...)

A Petrobas drilling platform in Guanabara Bay:  the company has invited rivals to bid for stakes in some of its most promising offshore oil finds. Photographer: Dado Galdieri/Bloomberg

Just a few years ago Brazil’s Petrobras had ambitions to overtake Exxon Mobile as the world’s largest listed oil company. But missed production target(...)

Brazilian president Dilma Rousseff: has vowed a “tooth and nail” defence of her mandate, accusing her opponents of “coup mongering”. But popular support for her has drained away. Photograph: Ivan Sekretarev/EPA/Pool

Nobody should mistake the recent calm of the Brazilian streets since anti-government agitation petered out for evidence that Dilma Rousseff has seen o(...)

Jerry O’Callaghan: “Brazil has been dealt a really bad hand of cards in terms of how it has been perceived globally.” Photograph: Rui Nagae

To the Irish Farmers’ Association, Jerry O’Callaghan might as well be one of the four horsemen of the Apocalypse. This third son of a small farm west (...)

A view of a Moy Park plant. The poultry producer has been sold by its owner to a 	Brazilian company in a deal worth €1.32 billion. Photograph: Brian Hallam/Moy Park

Moy Park, Northern Ireland’s biggest private employer, has been sold by its Brazilian owner to a local rival in a deal worth €1.32 billion. Debt-la(...)

Language of the city: James Concagh with some of the pichação that inspired him. Photograph: Tom Hennigan

James Concagh has long been inspired by the urban landscape and textures of his adopted home city of São Paulo. He calls its ubiquitous graffiti “t(...)

Caroline and Martin Dwyer, and their daughter Aisling, pictured at the inquest into the death of their son Michael Dwyer, at the Dublin County Coroner’s Court, Tallaght, Co. Dublin. Photograph: Eric Luke Staff Photographer

Michael Dwyer travelled to Bolivia in 2008 telling his family he was going to the South American country to take a bodyguard training course. He had r(...)

The Bolivian hotel where Tipperary man Michael Dwyer was killed by police in 2009. Two men who were in the hotel on the night of the  killing have come forward. Photograph: Julien Behal/Phoenix Films

Two Brazilian men who were staying in the same Bolivian hotel as Tipperary man Michael Dwyer on the night Dwyer was shot dead by police in April 20(...)

Michael Dwyer. His family says it has gathered evidence that shows he was summarily executed by Bolivian state forces and is calling for an international investigation into their son’s death. Photograph: PA Wire

A Brazilian engineer who was on the same floor of the Santa Cruz hotel when Michael Dwyer was shot dead by police in 2009 has emerged to contradict(...)

Police on  guard near the Corinthians fans’ Hall 9 headquarters, in Vila dos Remedios, west of São  Paulo, after a shooting that left eight people dead on April 19th, 2015. Seven  Corinthians fans were executed at the site, and an eighth person was shot at a nearby gas station. File photograph: Fernando Neves/AFP/Getty Images

Authorities in Brazil have ordered the arrest of one serving and one former police officer suspected of carrying out the murder of eight supporters of(...)