Police tweeted this photo of a knife along with metal knuckles found on the students.
Along with the weapons, police also found marijuana on a student.
Police say the students admitted to being at a fight near the school, but just as spectators.
Four other students have been arrested in the past week for bringing knives to Santa Rosa schools.
MORE: 'Large hunting knife' found in 15-year-old student's backpack at Santa Rosa school, police say
Earlier this month, a 16-year-old Montgomery High School student was fatally stabbed during a fight in a classroom, and a 15-year-old has been charged with voluntary manslaughter in the death.
MORE: Heartbroken family mourns loss of 16-year-old stabbed to death at a Santa Rosa high school
Family mourns loss of teen fatally stabbed at Santa Rosa high school