![Main ramp collapses at Rio Olympics sailing venue(1/3)](http://www.ecns.cn/hd/2016/08/01/a4dd82ead2bb4315a546278a3f4e1ec2.jpg)
Construction workers are seen repairing a broken boat ramp at the Olympic sailing venue at Marina da Gloria before the Rio 2016 Olympic Games in Rio de Janeiro, Brazil, July 32, 2016. Organizers said no one was injured in the incident that raises further questions about the quality of construction in the Olympic host city. (Photo/Agencies)