WASHINGTON (WUSA9) -- The Metropolitan Police Department needs your help identifying a person of interest in connection with an armed robbery on Sunday.

It happened in the 400 block of 8th Street, NE around 6 in the morning. Police say the suspect used a knife.

The person of interest can be seen in this video: http://t.co/PqQUc8Q1gF

Anyone who has information regarding this case should call police at 202-727-9099.

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