Police blocked off a street Tuesday morning in Charlotte, North Carolina, while authorities investigated a report of a suspicious package that ended up being a cassette tape of the band Journey.

Investigators told WSOC that the suspicious package was noticed at the Duke Energy building in the city. Police said employees found a small manila envelope with suspicious handwriting on it.

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“Due to all the recent national events out of an abundance of caution their mail room alerted our central division offices who responded to the scene,” a spokesman for the Charlotte-Mecklenburg Police Department said. “They out of an abundance of caution notified our bomb squad who came and did a diagnostic on the package and it ended up being a cassette tape.”

The bomb squad brought bomb-sniffing dogs to the scene.

A Duke spokeswoman could not share many details about the package, but said it was addressed to Duke Energy. She also said the scene was cleared just before 7:45 a.m. and that business was operating as normal inside the building.

CMPD said some buildings in the immediate area were choosing to evacuate, but the scene was clear by 8 a.m.