By Christiane Amanpour and Matias Grez, CNN

By Ben Church, CNN

By Hannah Ryan, CNN

By Amy Woodyatt, CNN

By Ben Morse, CNN

By Thomas Schlachter and Kevin Dotson, CNN

By Matias Grez, CNN

By Amy Woodyatt, CNN

By Ben Church, CNN

By Sammy Mncwabe, CNN

By Matias Grez and Al Goodman, CNN

By Aimee Lewis, CNN

By Thomas Schlachter and Homero De la Fuente, CNN

By Don Riddell and George Ramsay, CNN

By Matias Grez, CNN

By Wayne Sterling, CNN

By Ben Church, CNN

By Thomas Schlachter, CNN

By Ben Morse, CNN

By George Ramsay, CNN