Update, 11:02 a.m.

Lemmon Valley Elementary School has been placed on a precautionary code yellow lockdown.

Reed High School was put on a code yellow on Friday morning due to suspicious activity off-campus.

An incident involving a student prompted a brief Code Red Lockdown at Inspire Academy in Reno Tuesday morning. 

In a Connect Ed phone call to parents, the school's principal said the lockdown was prompted when at a student on campus became disruptive after classes began.

The school district says one person was arrested and another was transported to the hospital as a result of the fights.