A Dunbar security guard leaving a Parkville bank Monday morning was robbed by a man armed with a chemical irritant, Baltimore County police said.

The security guard was attacked in the vestibule of the Bay Bank on Joppa Road around 9:30 a.m., when he and the suspect got into a physical struggle that continued outside. Police said the suspect grabbed a bag from the guard and ran. The guard then fired one shot at the suspect.

Police took the suspect into custody but no charges have been filed. The robbery unit is investigating.

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