By CBS13 Staff

TRACY (CBS13) — Authorities say threats that some students at Kimball High School received over the weekend are not credible.

Tracy police say, Sunday night, they were made aware of a threat posted on social media talking about a school shooting. Bomb threats were also made.

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The post did not specify any particular school. However, police say the students who received the threats all attend Kimball High. Officers have interviewed the students who got the messages.

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Police say they have not found any credibility to the threats. Still, it’s unclear who has made them.

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An extra police presence will be out at Kimball High on Monday out of an abundance of caution.