Former Oregon football standout Keanon Lowe is being credited with making a potentially life-saving tackle.

Lowe, who is the football and track coach and security guard at Parkrose High School in Portland, wrestled an armed man to the ground Friday at the school before any shots were fired.

No one was injured in the incident.  One person was taken into custody, and there are no other suspects. Police declined to release any information about the armed individual, including whether or not he was a student at the school.

"I'm just happy everyone was OK," Lowe said as he walked out of the school about four hours after the incident, according to The Oregonian/OregonLive. "I'm happy I was able to be there for the kids and for the community."

Portland Police Sgt. Brad Yakots, the police spokesman, said a firearm was recovered at the scene. The school was evacuated and a nearby middle school was on lockdown for several hours as the investigation unfolded.

The outcome was "the best case scenario, absolutely," Yakots said. "The staff member did an excellent job by all accounts, (and) our officers arrived within minutes and went right in."

Yakots said the suspect was being interrogated but did not provide any further details.

“An act that does not surprise me by (Lowe),” former Oregon left tackle Tyrell Crosby, now a member of the Detroit Lions, posted on social media. “One of the best humans (I’ve) been around. You’re a hero and it’s an honor to call you my friend.”

Students recounted how a man entered their government class in the school's fine arts building — separate from the main building — just before noon. Lowe had been in the classroom earlier looking for the man, whom other students identified as an 18-year-old senior at Parkrose.

About 10 minutes before the end of class, the student appeared in the doorway in a black trench coat and pulled out a long gun from beneath his coat, senior Justyn Wilcox, who also was in the room, told The Oregonian/OregonLive.

The student didn't point the gun at anyone, Alexa Pope said.

Students fled out the back door because the gunman was blocking the main doorway.

"As I was running, I was just like, Lord don't let this be it," Pope told the newspaper.

Lowe was a member of the 2014 Oregon team that won the Pac-12 championship and appeared in the inaugural College Football Playoff title game.

During his senior season, Lowe caught 28 passes for 414 yards and five touchdowns to help contribute to Marcus Mariota’s Heisman Trophy campaign.

Lowe grew up in Portland and was a prep star at Jesuit High before catching 68 passes for 891 and 11 touchdowns during four seasons playing for the Ducks.

After college, he worked as an offensive analyst for the San Francisco 49ers and as an analyst for the Philadelphia Eagles.

Lowe began working at Parkrose last year as the school's head football and track and field coach, according to his LinkedIn profile. Before that, he worked for his high school alma mater, Jesuit High, where he earned state defensive player of the year as a defensive back and was a standout sprinter.

“Keanon Lowe is a national treasure,” former Oregon and current Denver Broncos rookie outside linebacker Justin Hollins, who also played with Lowe in 2014, posted on social media.

Ryan Thorburn of The Register-Guard and Sillian Flaccus of The Associated Press contributed to this report.