Uruguayans will elect a new president to replace outgoing Jose Mujica who is barred by the law from running for a second term.
Brazilians will choose between Dilma Rousseff and Aecio Neves in what correspondents say is the tightest presidential election for decades.
A look back at Jose Mujica's time as president
Tens of thousands of parents in Chile march against the government's planned education bill which would phase out subsidised schools.
Who will prevail in Brazil's battleground state?
A US judge has sentenced an ex-Colombian rebel to 27 years in prison for his role in the kidnapping of three American citizens in 2003.
An Argentine ex-police chief and ex-interior minister are among 15 people given life sentences for involvement in a torture centre in the 1970s.
Brazil's election highlights huge economic disparities
Sunday's presidential run-off vote in Brazil is too close to call and the election battle has centred on the pivotal home state of both candidates, Minas Gerais.
Eleven people fell seriously ill in Brazil after eating a deadly puffer fish for lunch, it was reported.
People divided ahead of Brazil election run-off
The governor of Mexico's southern Guerrero state - where 43 students went missing after deadly clashes with police last month - stands down.
The US returns about 20 ancient Peruvian artefacts - some more than 1,800 years old - that had been looted from pro-Columbian graves.
More than half a million people in Honduras have been affected by a severe drought, according to the Red Cross.
Renting your own room for a power nap
Mexico orders the arrest of the mayor of the southern town of Iguala, where 43 students disappeared after clashing with police last month.
Cuba sends a second group of medical staff to West Africa to help fight the Ebola outbreak, becoming the biggest single provider of healthcare workers.
A Mexican human rights body accuses eight soldiers of killing 12 suspects in cold blood and tampering with the evidence to make it look like a shoot-out.
Post-colonial writing is literature which addresses the experience of growing up in newly independent former colonial nations.
The Dominican Republic declares Wednesday an official day of mourning for Dominican-born fashion designer Oscar de la Renta, who has died at 82.