A Lawrence High School student who admitted he brought a gun to school has not been arrested, police said Friday.

On Tuesday, the high school senior told a worker at the school he had taken a gun to school on Jan. 16. The school contacted Lawrence police to investigate.

Principal Steve Nilhas said it’s a very serious situation anytime a student reports such activity and that swift action was taken.

Nilhas said he didn’t know why the student reported taking the gun or why he waited several days to report it. But, it’s a situation administrators said they don’t take lightly.

The principal would not release additional information about the incident, because of an ongoing police investigation.

“Having something like this on campus is not a safe situation,” Nilhas said. “We want to avoid that.”

Students at the school had mixed feelings about the report of a possible deadly weapon in their school.

“I didn’t feel good about it when I heard about it,” said Mattie Casad, junior. “I was pretty scared.”

“That’s really immature,” said Mary Grace Paez, junior. “I just don’t get how kids bring guns to school.”

Nilhas wouldn’t release details about the student or his past, calling it private information.

The case will be forwarded to prosecutors for consideration of charges, once the school’s resource officer files the appropriate paperwork, a police spokeswoman said.

Taking a weapon to a Lawrence school can result in long-term suspension or expulsion.