Published: Apr 18, 2014 8:55 AM EDT

LEHIGH ACRES, Fla. -- The Lee County Sheriff's Office is looking for the person who robbed an Advanced Auto Parts store Thursday night.

Deputies say it happened at the store on Leonard and Lee Blvds. in Lehigh Acres. LCSO says a man walked in, attacked three customers, took an unknown amount of cash and ran off.

A K9 unit was tracking the suspect, but lost his scent.

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