FREMONT, Neb. (AP) – An eastern Nebraska high school went into a lockdown after a student reported another student walk into the building carrying what looked like a gun.

Fremont police said Thursday the weapon turned out to be a BB pistol. Officers took the student who’d been carrying it and another student into custody about two blocks from Fremont High School. The two students’ names haven’t been released.

Police say no shots were fired and no one was injured. Classes had ended for the day, but some students and staff members were still in the building. Officers sent to the school cleared the building room by room as other officers surrounded it.

The lockout ended about two hours after it began.