A woman dies at the first of American singer Taylor Swift's concerts at the Estádio Olímpico Nilton Santos in Rio de Janeiro, Brazil, during a day when temperatures reached 39.1 C. Swift postpones her second concert in the city due to the heat.
More than 150 prominent scientists worldwide send a letter to World Health Organization Director-General Margaret Chan calling for the postponement or relocation of the Rio de Janeiro 2016 Summer Olympics because of the widening Zika virus outbreak in Brazil, despite U.S. Centers for Disease Control and Prevention Director Tom Frieden's statement yesterday that "there is no public health reason to cancel or delay the Olympics."
In Brazil, Cardinal Stanislaw Rylko, president of the Pontifical Council for the Laity, speaks to a group of World Youth Day delegates from 75 countries and 40 movements. He hopes World Youth Day 2013 in Rio de Janeiro will have a lasting effect on the hundreds of thousands of young people slated to attend.
Rescue efforts continue in Brazil in an attempt to locate around 200 people believed to have been buried in their homes by a large landslide in Morro do Bumba near Rio de Janeiro city in the state of Rio de Janeiro.
About 103 people are killed in flooding and mudslides in Rio de Janeiro state in Brazil. Of the total, thirty-three people died in the city of Rio de Janeiro, while 33 were killed in the neighbouring city of Niterói, 12 people dead in São Gonçalo, and one in Petrópolis.