STAPELTON, Staten Island (PIX11) — Two windows at a Staten Island elementary school were shattered by gunfire on Monday afternoon, police said.

The bullets pierced the windows of two classrooms at PS 78 on Hill Street in Stapelton at around 12:35 p.m., according to the NYPD. There were 10 adults in one classroom and the other was empty, police said. There were no injuries.

The shooting was not connected to an incident at the school, according to the New York City Department of Education. None of the bullets actually entered the classrooms, school officials said.

“The safety and wellbeing of our students is our top priority. NYPD immediately responded to this incident, which was due to an off-site, non-school related incident. The school went into a brief shelter-in, which has been lifted and no students or staff were hurt,” a Department of Education spokesperson said in a statement.

Information about the shooter was not immediately available. There have been no arrests and the investigation is ongoing.

Submit tips to police by calling Crime Stoppers at 1-800-577-TIPS (8477), visiting, downloading the NYPD Crime Stoppers mobile app, or texting 274637 (CRIMES) then entering TIP577. Spanish-speaking callers are asked to dial 1-888-57-PISTA (74782).