S. Korea holds event to demonstrate unmanned postal and mail delivery service

A staff member displays how a delivery robot works on the Sejong Campus of Korea University in Sejong City, South Korea, Oct. 28, 2020. The South Korean Ministry of Science and ICT and Korea Post held an event to demonstrate the unmanned postal and mail delivery service using automatic robots and unmanned vehicles on Wednesday on the campus. (Xinhua/Wang Jingqiang)