People were being asked to stay away from the area of MLK and Cesar Chavez Buildings and a student told ABC7 News they were being evacuated from the campus.
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The person was sighted near the Martin Luther King Jr. and Cesar Chavez student buildings in Lower Sproul Plaza. Police sent an alert about the sighting to students at 11:50 a.m. UC Berkeley officials said on Twitter at 12:03 p.m. that both buildings are currently on lockdown.
Police searched the buildings but did not find anyone matching the description.
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Stay with ABC7 News for the latest details on this developing story.