Piranhas injured more than 60 people in an Argentine river, dpa reported Wednesday.
A seven-year-old child had to have part of his finger amputated after the fish attack in the Rio Parana near Rosaria, about 300 kilometres north of Buenos Aires, La Capital newspaper reported.
Victims suffered bites on their feet and hands. Doctor Gustavo Centurion called the first such attack of the summer season in the South American nation particularly aggressive.