Black Hawk Elementary closed it's doors Friday afternoon after black mold was discovered in one of the walls of the school's entryway.
The Rapid City Schools administration decided to close school all next week while testing is underway to determine the concentration of the mold and if it has spread to other areas of the school.
The tests should be back on Wednesday.
In the meantime, the school administration is working on a plan for the students.
Rapid City superintendent Dr. Lori Simon says "Admin will be exploring alternative options as to where to hold school, how the time will be made up in the event that it is determined that the problem is more pervasive and the district will continue to update our families as more information does become available.
Parents of Black Hawk Elementary students were notified Friday through email, robocall and text message.