RELATED: San Leandro High School lockdown lifted, classes canceled after graffiti threat
Sky7 was over the school, where extra police were in place. The school says a student reported seeing threatening graffiti in a bathroom.
The same thing happened on Thursday, and the school was also locked down as a precaution.
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Police said they didn't believe the threat to be credible.
James Logan High School is the largest school in Northern California.
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