After police found a gun on campus, one Roseville school is releasing students early.

According to a Facebook post from the Roseville Police Department, one student from Oakmont High School has been detained after police found a firearm on campus.

While searching the school for the weapon, the school was placed on lockdown as a precautionary measure. The school has since lifted the lockdown and has dismissed students, while at the same time alerting parents about updated bus transportation.

No injuries were reported.