Brazilians vote on 4 October in a presidential election polls call neck and neck between incumbent Luiz Inácio Lula da Silva and senator Flávio Bolsonaro.
Venezuelan authorities released a number of political prisoners on Saturday morning, rights group Foro Penal says, days after Delcy Rodríguez met Donald Trump.
Trump met Venezuela's interim President Delcy Rodríguez at the UN General Assembly, their first face-to-face talks since a US raid seized Nicolás Maduro.
Venezuela's interim president Delcy Rodríguez told the UN General Assembly that elections will be held but set no date, drawing criticism from the opposition.
A US-led company gets 100-year concessions over 17 Venezuelan oilfields holding 65 billion barrels, under a deal Trump calls the biggest in oil history.
Argentina's Javier Milei has launched sanctions proceedings against 45 people and companies over the Falklands, as Donald Trump re-evaluates the US stance.