LANSING, MI.- Michigan's attorney general is set to announce criminal charges against two state regulators and a Flint employee, alleging wrongdoing related to the city's lead-tainted water crisis, according to two government officials familiar with the investigation.
    
The charges will be filed Wednesday against a pair of state Department of Environmental Quality officials and a local water treatment plant supervisor, the officials told The Associated Press late Tuesday. They spoke on the condition of anonymity because they weren't authorized to discuss the investigation publicly.
    
The charges would be the first levied in a probe that's expected to broaden.
    
A spokesman for Attorney General Bill Schuette's office declined comment Tuesday night. Schuette and other investigators have scheduled a news conference Wednesday afternoon to make a "significant" announcement in the investigation.