DALLAS – A “deceased fetus” was found in a Dallas high school bathroom after students alerted a janitor.

CBS reports:

Authorities are looking for the girl who they believe gave birth inside Woodrow Wilson High School. The school has surveillance cameras on the inside and outside of the building. CBS 11 News sources say detective are now reviewing video to try and help them find the birth mother or identify witnesses. That could be a tough task since the school has nearly 1,600 students. …

Staffers were called to an upstairs bathroom around 2:30 p.m. Friday. It was there that a deceased fetus had been discovered inside a bathroom stall. According to teens at the school, it was a student who alerted a worker.

“I think that there was somebody that had notified a custodian of a situation in a restroom,” explained Dallas Independent School District spokesperson Jon Dahlander. “The custodian went and then made the discovery.”

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“We’re reviewing video, talking to the teachers, trying to determine if anybody has any knowledge of any student that may have had something going on in their life, and pray,” Dallas Police Major John Lawton tells Fox 4.

Police are seeking any students who may have information as to the identity of the mother.

One parent, Christine Kerry, tells CBS she was upset parents weren’t told why police had “swarmed” the school.

“I got out [of her car] and specifically asked, ‘what’s going on and is it safe for the kids to be out here?’ and I was told to go away,” the news station reports.

The bathroom is being treated as a crime scene, the district tells News 10.

“The district encourages parents and families to discuss the situation with their students, and when appropriate, encourage their students to meet with counseling staff at the school,” a prepared statement from the district reads.