When officers arrived at the location on 841 Madison Street in Bedford-Stuyvesant, they instructed the man operating the school to close.
The man then closed the school and the students left.
The Mayor's Office said in a tweet Monday evening that they were issuing a Cease and Desist Order to keep kids and the community safe.
MORE CORONAVIRUS COVID-19 COVERAGE
COVID-19 Help, Information and Resources
New York state
Grieving the lost: Tri-State residents who have died
Share your coronavirus story with Eyewitness News
Stimulus check scams and other coronavirus hoaxes
Coronavirus prevention: how clean are your hands?
Centers for Disease Control and Prevention on coronavirus
Total count of NYC COVID-19 cases based on patient address