Sioux City Police are investigating another armed robbery at a convenience store.
It happened at the Central Mart at 2501 Floyd Boulevard.
Police say a man wearing a hoodie and a mask entered the store about 5:40 Wednesday morning and threatened the clerk with a handgun.
He demanded cash, then fled on foot.
The clerk was not injured.
Officers did a search of the area but did not locate a suspect.
Anyone with information in this case can call the Sioux City Police Department at 279-6440 or CrimeStoppers at 258-TIPS.
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