TULSA - Tulsa police investigated a suspicious substance at the social security office near 47th and Garnett.
Police said the bomb robot broke apart the suspicious device, which was sticks wrapped with cologne.
Police say an employee found the suspicious substance and an envelope in their drop box Monday.
Hazmat crews determined there was food grease on the envelope.
Employees and clients were held for about two hours until they were cleared by officials.
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