Tokyo 2020 Olympic medals to be made from old mobile phones

Tokyo 2020 Olympics organisers have asked the people in Japan to donate unwanted electronic devices so the metal can be used to help make medals for the Games.
Some 5,000 medals will be needed for the Olympics and Paralympics in Japan and it is hoped eight tons of metal - including 40kg of gold, 4,920kg of silver and 2,944kg of bronze - can be gathered to help obtain the two tons needed after the production process is complete.