JACKSON, Mich. (ABC News) -- All classes were canceled Friday at Jackson Public Schools after a shooting at a high school Thursday afternoon.

Around 1:45 p.m. gun shots were heard in the neighborhood surrounding Jackson High School on Wildwood Ave.

Moments later, administrators at the school realized the building was damaged by bullets.

District superintendent Jeff Beal says two windows were hit and bullets went into two classrooms where students were learning.

No one was hurt.

Police believe the gunfire could have come from a nearby apartment complex on W. Michigan Ave.

But they're still trying to figure out if the school was targeted.

With schools on edge after recent shootings, Beal says this has been a scary thing to go through.

"I was in the high school library today when it happened so without question, we want to make sure that all of our kids are safe, and then we want to make certain that we're communicating that to parents and making sure they understand what happened, and the steps we are taking with JPD to protect their children," Beal said.

Though classes are canceled Friday, the district says all planned activities like sports and prom are still happening.