Detroit schools shut off drinking water over lead and copper concerns

Detroit's Cass Technical High School, shown in this May 2016 photo, was one of the 16 schools where water tests recently showed higher than acceptable levels of lead or copper, the city's school district said.

(CNN)Drinking water is being shut off at all of Detroit's public schools because elevated levels of lead or copper were found in some of the buildings, the district's superintendent said ahead of the new school year.

The schools will use bottled water and water coolers instead when students return to class Tuesday, Superintendent Nikolai Vitti said.