Gunmen killed at least 18 people in outlying districts of Sao Paulo, and authorities suspect a coordinated campaign of revenge by off-duty officers for the death of two colleagues.
One day after Chile's Supreme Court sentenced him to 20 years in prison for a "dirty war" crime, a Pinochet-era general shot himself in the head in his apartment in Santiago.
A transport strike to oppose a wage cap in Argentina brought Buenos Aires to a standstill, but pro-government labor unions called the walk-out politically motivated.
Indigenous leaders from across Argentina's 17 provinces met in Buenos Aires to coordinate resistance to dispossession from their ancestral lands by development interests.
As charges were dropped against President Cristina Fernández, the intelligence service dissolved and cabinet purged, opposition lawmakers said a "self-coup" is in the works.
Protesters marched to a construction site in Argentina's Neuquén province where plans are moving ahead for a spaceport to be overseen by China's space agency.
Media reports in Brazil suggest that the crackdown on favela gangs in the prelude to this year's contentious World Cup was actually a police extermination campaign of favela youth.
Brazilian authorities reached a deal with inmates after a deadly prison uprising at Cascavel in Paraná state—one of many facilities where control of wards has been left to gangs.
Prosecutors in Brazil called for compensation to a Guarani indigenous community forced by land usurpation into a roadside camp where eight have been killed by motorists.
An uprising in a favela on hills overlooking the famed Copacabana beach spilled over into the posh tourist district below. Is Rio's "pacification" campaign backfiring?
Military Police occupied the favela, or shantytown of Caramujo outside Río de Janeiro following riots sparked by the death of two local youths in incidents with the security forces.
Brazilian Military Police backed by Marine troops occupied the massive Maré favela next to Rio de Janeiro's airport in a major clean-up operation ahead of the World Cup.
