Building exits close for 10minutes to allow trial search for missing youngsters to proceed

China's first child abduction alert system, which will close all the exits of a building for 10 minutes to search for missing children, came into force in Nanjing, capital city of Jiangsu province, on Monday.

The Deji Plaza, a high-end shopping mall in the downtown Xinjiekou area where the system was installed, has put cartoon stickers on the doors of its entrances, exits and elevators to inform customers of the system.