Yu Shijun, Deputy Secretary of the Party Committee of the Standing Committee of the People's Congress of Shuangyashan City, Heilongjiang Province, is under investigation.

According to the website of the Central Commission for Discipline Inspection of the National Supervisory Commission, the Heilongjiang Provincial Commission for Discipline Inspection and Supervision announced that Yu Shijun, the Deputy Secretary and Deputy Director of the Party Group of the Standing Committee of the People's Congress of Shuangyashan City, Heilongjiang Province, and the Chairman of the City Federation of Trade Unions, is suspected of serious violations of discipline and law, and is currently undergoing disciplinary review and supervision investigation by the Heilongjiang Provincial Commission for Discipline Inspection and Supervision.