A zoo in Nagoya has asked for a probe into the logo that 2020 Tokyo Olympics emblem designer Kenjiro Sano created for it, sources said Tuesday.
The Higashiyama Zoo and Botanical Gardens requested the probe after fresh accusations were raised that the zoo's logo resembles that of Costa Rica's national museum, according to the sources.
The zoo adopted the logo, which depicts an animal face with three yellow circles and a plant face with six green buds, in 2013.