More charges have been filed by Michigan’s attorney general in the investigation into the lead-tainted water crisis in Flint, Michigan, including against two former state-appointed emergency managers.

Attorney General Bill Schuette on Tuesday charged former emergency managers Darnell Earley and Gerald Ambrose with multiple 20-year felonies for their failure to protect the residents of Flint from health hazards caused by contaminated drinking water.

Schuette also charged Earley, Ambrose and Flint city employees Howard Croft and Daugherty Johnson with felony counts of false pretenses and conspiracy to commit false pretenses in the issuance of bonds to pay for a portion of the water project that led to the crisis.