BOSTON (CBS) — Prosecutors dropped charges against a man who was arrested Friday after he boarded an MBTA bus with what appeared to be military-grade ammunition strapped to his waist.

The bullets turned out to be fake. But Boston police said they looked so convincing that several passengers called 911.

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The bus driver pulled over near Cambridge and Harvard streets.

“The driver stated that the passengers were in a panic, fearing that the suspect was about to pull out a weapon,” Boston police said.

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Kevin Young, 26, of Watertown, appeared in Brighton District Court to face charges of unlawful possession of ammunition, unlawfully carried dangerous weapon and disorderly conduct.

Kevin Young in court on July 13, 2015 (WBZ)

Kevin Young in court on July 13, 2015 (WBZ)

The charges were dismissed after prosecutors determined the ammunition “could not and weren’t intended to be fired,” a spokesman at the Suffolk County District Attorney’s Office said Monday.

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Police had found 69 total replica bullets on Young.