It happened at the convenience store on Four Seasons Parkway late Thursday night. That's when a masked man barged in with a knife and demanded cash from a clerk.
The clerk opened up the register and the robber cleaned it out and fled.
No one was hurt.
Early Friday morning, a masked man brandishing a knife also robbed the 7-Eleven on the 200 block of Christiana Road. It's unclear whether the two robberies are connected.
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