MIAMI BEACH, Fla. -

Miami Beach City Hall was evacuated Friday morning because of a suspicious device.

Police said a security guard heard a noise coming from a garbage can near the building and called 911.

About 300 people were removed from the building while the bomb squad investigated.

A robot was used to inspect the garbage can. Police said it was determined to be a medical alert device.

Several roadways surrounding City Hall were also closed during the investigation.

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