Montgomery High in Santa Rosa temporarily placed on lockdown

SANTA ROSA, Calif. - Montgomery High School in Santa Rosa was placed on lockdown Friday for several hours after school staff were told that there was a student with a gun, authorities said.

A knife wrapped in a Montgomery High School t-shirt was found in a classroom, but police did not find a gun.

Two months ago, a 16-year-old Montgomery High School student was fatally stabbed by a classmate during a fight in a classroom.

Santa Rosa police said the incident today began when a student reported around 10:45 a.m. that they saw another student displaying a firearm in their waistband. 

The school was placed on lockdown while officers searched students from several classes.

The lockdown was lifted at 1 p.m.

Police said that today was described as "senior assassin day" at the school in which students bring water guns to campus that are used to "eliminate" other people playing the game. 

"These kinds of ‘games’ on school campuses are troubling because students are bringing perceived handguns on campus and targeting other students, teachers, and administrators," police said in a statement.