Classes cancelled at high school middle school in Griffith, Ind.

GRIFFITH, Ind. (WLS) -- Classes at Griffith High School and Middle School have been cancelled because of a bomb threat.

The schools were evacuated as a precaution. Police said the threat was sent by email to the high school principal and the five members of the school board early Monday morning.

Nothing was found during a search of the building. Officials expect classes to resume Tuesday morning.

Griffith's three elementary schools were placed on lockdown as a precaution.
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