(CBS) — Streamwood High School was on lockdown Friday as police investigated a gun at the school.

Students were delayed about an hour in getting dismissed from school.

READ MORE: Man Seriously Wounded In Shootout With University Of Chicago Police Officer In Hyde Park

Police say it began with rumors of a gun in the school.

In a statement, the police department says it recovered a gun just off of school property and took a student into custody.

READ MORE: Chicago Weather: Arctic Blast Coming Late Tuesday Night

An assistant principal tells WBBM no one in the school was hurt during the episode.

Nate McCoy praises the response by both police and students.

There’s no word on the student’s identity or any charges at this point.

MORE NEWS: AT&T And Verizon Delay Rollout Of New 5G Service Near O'Hare, Midway, Other Airports After Airlines Warn Of Delays