BEIJING, June 2 (Xinhua) -- An online platform launched by the Ministry of Public Security in May 2016 has helped find 3,901 missing children in the country.

A total of 3,978 leads related to missing child cases have been provided on the platform called Tuanyuan, meaning reunion in Chinese, according to an awareness-improving event jointly held in Beijing Sunday by the ministry and an office for ministerial liaison conference on combating child trafficking under the State Council.

The platform, which is part of the ministry's efforts to fight against child trafficking, enables police officers to release information on missing children on it.

Also on Sunday, police officers in other parts of the country carried out various forms of activities, including disseminating leaflets on anti-trafficking and answering questions about child trafficking.