A former Chinese official was on Friday sentenced to four years in jail for sexually abusing three minor boys, Chinese state media reported. The District People's Court in Guangdong Province convicted Li Jun, a former official of the Guangzhou Civil Affairs Bureau, of molesting three boys under 14 years of age on multiple occasions between September 2011 and June 2012. 44-year-old Li got to know the boys by chatting with them online. He subsequently invited them to his home by promising them money or other rewards, state-run Xinhua news agency reported. Li was in charge of the bureau's civil organisation administration department before he was detained in July last year, the report said. The case is the latest in a string of child molestation cases that have popped up across China in recent weeks. David McMahon, a US teacher who worked in Shanghai, was arrested on Thursday over allegations that he molested six children aged 6 to 10.