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The LA Unified school district made the rare move today of closing all of its campuses after receiving a terror threat.

Superintendent Ramon Cortines has asked for police to search every building — a major operation considering the district has over 1,100 campuses. The move also comes as New York officials said they received a similar threat but have determined it was a hoax.

Check out our Storify feed below for live updates via Twitter, Facebook and other social media accounts about the school closings.