A short lockdown occurred at Lone Tree Elementary after a masked high-school student reportedly approached the door.

Daniel Jansen, 18, a student at Lone Tree Schools, was identified as the student attempting to enter the school.

Michael Reeves, superintendent of Lone Tree Schools, said he and the dean of students met the intruder at the door to restrain him.

“From his appearance, I could tell right away that this was not normal,” he said.

Police officials allegedly discovered the high-school student had a knife.

Joanne Havel, the manager of Game On, 112 N. Devoe St., whose grandchildren attend the elementary school, said she believes officials handled the situation well.

“I know we put some security measures in place,” she said. “They did what they could do to keep the children out of harm’s way.”

Havel also noted when she went to the school to check on things, officials said the students would not even know what had happened.

“There’s no reason to get kids worked up unnecessarily,” she said.

Just down the road from Game On, at Gin’s Bar and Grill, 113 Devoe St., owner Gin Spears said she agrees the situation was handled properly.

“[They] did a really good job of protecting our kids,” she said.

According to a Johnson County Sheriff’s Ofice press release, Jansen was taken to University of Iowa Hospitals and Clinics for an evaluation.

The incident is still under investigation.

— by Megan Sanchez