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'Hazardous incident' a false alarm at Johns Hopkins University

CBS News Live
CBS News Baltimore Live

BALTIMORE -- A response to what was called a "hazardous incident" at Johns Hopkins University Monday morning ended up being a false alarm, the university said.

The Baltimore City firefighter's union said units were on the campus around 9:30 a.m. for the incident. 

A university spokesperson told WJZ the response was over what ended up being an envelope filled with sand. 

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