BARTOW, Fla. – Two middle school girls in Florida were arrested Tuesday after they concocted a “plot to kill students” using a variety of weapons, including a pizza cutter, police said.

The 11 and 12-year-old girls “wanted to kill at least 15 people,” Bartow Police Chief Joe Hall said at a news conference Wednesday.

middle school girls

Chief Joe Hall talks to the press. (Screenshot Fox 13 broadcast)

The two “were waiting in the bathroom for (an) opportunity to find smaller kids that they could overpower to be their victims.”

Both girls were searched in a Bartow Middle School office, where a butcher knife was located on one of the students. Knives, scissors and a pizza cutter were also found, reported Fox 13.

The girls admitted to investigators that they were “Satan-worshippers.” Moreover, the girls said, “They were willing to drink blood, and possibly eat flesh,” according to the chief.

“As I sat there last night [and] watched these interviews, I do not believe this was a joke,” Hall said.

After the girls were taken into custody, authorities searched their respective homes. As a result, they discovered additional attack plans. One piece of evidence included a hand-drawn map of the school. It was reportedly discovered with the words, “Go to kill in bathroom,” written on top of it.

One of the text messages exchanged in a conversation found by authorities reportedly read: “We will leave body parts at the entrance and then we will kill ourselves.”

In a statement posted to Facebook, Hall said no one was harmed in the incident, and thanked school staff for “thwarting this plot from becoming a tragedy.”

Furthermore, the police chief said that all safety protocols put in place worked on Tuesday, and reiterated the key law enforcement phrase: “If you see something, say something.”

“It worked in this incident,” he said.