Riverside High School was under a lockdown on Tuesday afternoon after school administrators got a tip that there may be a student with a weapon on campus.
Durham police and Durham County Sheriff's Office members were at the school around 3 p.m.
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The lockdown was lifted around 3:30 p.m. Riverside's regular school day schedule runs until 4:15 p.m.
It's not known if anyone was arrested.
WRAL News is working to learn more.