Hawzah News Agency - (Wisconsin- US) - Duaa Ahmad, a senior at Oshkosh West High School, is seen in the footage ushering her classmates in to the Muslim Community's chapter mosque, where she is a member.

Ahmad told ABC News that she “felt a little fear” but she felt like it “had to be done."

The mosque is across the street from the high school, where police said an armed student stabbed a school officer during an incident before being shot by the officer.

Both the student and officer were treated at a hospital for non-life threatening injuries, according to police.

Ahmad said a teacher told students to run from the campus minutes before the incident, but they had no idea why.

"It could have been anything. That fact that we didn't know caused even more anxiety," the Muslim teen said.

"I'm lucky that I was in that place when that situation ensued, and I'm just grateful that I was able to enter the code and let as many people in," she added.