The office of U.S. Attorney for the Southern District of New York, Preet Bharara, has launched an investigation of health concerns among public housing units and homeless shelters across the city. Cases of elevated blood lead levels and false claims from housing and shelter officials will fall under the scrutiny of federal prosecutors, the New York Times reports.

No announcements of a criminal investigation have been announced, despite calls for Gov. Rick Snyder to resign.

The National Guard has been deployed to help distribute water bottles following the lead contamination of Flint, Michigan's drinking water.